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Association between smoking and the risk of dental implant failure in Korean adults: a nationwide cohort study
Yu-Rin Kim, Minkook Son, hyeon Ji Kim, Seon-Rye Kim
Epidemiol Health. 2026;48:e2026002.   Published online January 14, 2026
DOI: https://doi.org/10.4178/epih.e2026002
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  • 74 Download
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
We evaluated the associations of smoking status, intensity, duration, and cumulative exposure with the risk of dental implant failure in Korean adults.
METHODS
This retrospective cohort study utilized the National Health Insurance Service–Health Screening Cohort (2016–2019). Overall, 23,573 individuals who had completed the dental implant process were included. Smoking status was categorized as non-smoker, ex-smoker, or current smoker. Smoking intensity, duration, and cumulative exposure were classified using standardized thresholds (>10 cigarettes per day, >10 years, and >10 pack-years). Implant failure was defined as reimplantation or removal. Cox proportional hazards models were applied to estimate hazard ratios (HRs) and 95% confidence intervals (CIs), adjusting for demographic, clinical, and behavioral covariates.
RESULTS
During follow-up, 605 implant failures occurred: 344 in non-smokers, 182 in ex-smokers, and 79 in current smokers. The corresponding incidence rates per 1,000 person-years were 11.56, 16.54, and 22.33, respectively. Current smoking was significantly associated with higher implant failure risk (adjusted HR, 1.59; 95% CI, 1.20 to 2.09), while ex-smokers displayed a non-significant increase (adjusted HR, 1.16; 95% CI, 0.94 to 1.45). A dose–response relationship was observed: smoking more than 10 cigarettes per day, smoking for more than 10 years, or exceeding 10 pack-years was associated with significantly increased risk.
CONCLUSIONS
Smoking is a significant, dose–dependent risk factor for dental implant failure in Korean adults. Current smokers have the highest risk; smoking cessation may reduce adverse outcomes. These findings emphasize the importance of detailed smoking assessments and cessation counseling in implant care and public health strategies.
Summary
Korean summary
본 연구는 치아 임플란트를 시행한 성인들을 대상으로 흡연 상태(현재, 과거, 비흡연)와 흡연 강도, 기간, 누적 노출량에 따른 임플란트 실패 위험의 차이를 분석하였다. 분석 결과, 비흡연자에 비하여 현재 흡연자, 하루 10개피 이상 흡연자, 10년 이상 장기 흡연자, 10갑년 이상 누적 흡연자에서 임플란트 실패 위험이 유의하게 높았다. 특히, 여성의 경우 흡연이 임플란트 실패에 미치는 영향이 남성보다 크게 나타났다. 반면, 과거흡연자는 통계적으로 유의한 연관성을 보이지 않았다. 이러한 결과는 구강건강 증진과 임플란트의 성공적 예후를 위해 흡연자의 금연지도가 필수적임을 시사한다.
Key Message
This study examined differences in implant failure risk according to smoking status (current, former, never) and smoking intensity, duration, and cumulative exposure among adults who underwent dental implant placement. Compared with never-smokers, the risk of implant failure was significantly higher in current smokers, those who smoked ≥10 cigarettes/day, long-term smokers (≥10 years), and individuals with ≥10 pack-years of cumulative smoking exposure. Notably, the adverse impact of smoking on implant failure was greater in women than in men. In contrast, former smoking was not statistically associated with implant failure. These findings underscore the need for structured smoking-cessation counseling to improve oral health and optimize implant prognosis.
Preventable cancer cases and deaths attributable to tobacco smoking in Korea from 2015 to 2030
Soseul Sung, Jihye An, Jeehi Jung, Hyeon Sook Lee, Sungji Moon, Inah Kim, Jung Eun Lee, Aesun Shin, Sun Ha Jee, Sun-Seog Kweon, Min-Ho Shin, Sangmin Park, Seungho Ryu, Sun Young Yang, Seung Ho Choi, Jeongseon Kim, Sang-Wook Yi, Yoon-Jung Choi, Youjin Hong, Sangjun Lee, Woojin Lim, Kyungsik Kim, Daehee Kang, Keun-Young Yoo, Sohee Park, Jeong-Soo Im, Hong Gwan Seo, Hai-Rim Shin, Kwang-Pil Ko, Sue K. Park
Epidemiol Health. 2025;47:e2025008.   Published online February 27, 2025
DOI: https://doi.org/10.4178/epih.e2025008
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Tobacco smoking is a major public health concern worldwide. This study aimed to assess its impact on cancer incidence and mortality by estimating the population attributable fraction (PAF) in the Korean population for 2015 and 2020 and by projecting future trends until 2030.
METHODS
The Korean relative risk (RR) was calculated via a meta–analysis of RRs for individual cancers attributed to tobacco smoking, based on primary data analysis from the Korean Cohort Consortium. The PAF was estimated using the Levin formula with past and current prevalence rates and the number of cancer cases and deaths, assuming a 15-year latency period.
RESULTS
The proportions of cancer cases and deaths in Korea attributable to tobacco smoking were similar to those calculated using Asian and global RRs for both male and female. In 2015 and 2020, tobacco smoking contributed to 14.32% and 13.17% of cancer cases and 21.70% and 20.69% of cancer deaths in adults, respectively. Among Koreans, smoking was responsible for 25.83% of new cancer cases in male in 2015, 23.49% in male in 2020, 1.46% in female in 2015, and 1.68% in female in 2020. In both years, smoking impacted mortality more strongly than incidence in Korean male and female (incidence in male: 25.83% and 23.49%; mortality in male: 32.09% and 30.41%; incidence in female: 1.46% and 1.68%; and mortality in female: 4.70% and 4.96%, respectively).
CONCLUSIONS
Tobacco smoking causes cancers and deaths in Korea, however, it is preventable. Effective control policies that consider trends and vulnerabilities among female are required.
Summary
Korean summary
한국에서 흡연으로 인한 암 부담은 2015년 발생 14.32%, 사망 21.70%였고 2020년에는 발생 13.17%, 사망 20.69%로 나타남. 두 해 모두 남성에서 부담이 훨씬 컸음(남성: 발생 2015년 25.83%, 2020년 23.49%; 사망 2015년 32.09%, 2020년 30.41% / 여성: 발생 2015년 1.46%, 2020년 1.68%; 사망 2015년 4.70%, 2020년 4.96%). 흡연은 예방 가능한 주요 원인이므로, 여성의 취약성과 추세를 고려한 보다 강력한 금연·규제 정책 강화가 필요함.
Key Message
In Korea, tobacco smoking accounted for 14.32% of incident cancers and 21.70% of cancer deaths in 2015, and 13.17% of incidence and 20.69% of mortality in 2020. The burden was much greater in men than in women in both years (men: incidence 25.83% in 2015 and 23.49% in 2020; mortality 32.09% in 2015 and 30.41% in 2020; women: incidence 1.46% in 2015 and 1.68% in 2020; mortality 4.70% in 2015 and 4.96% in 2020). Smoking remains a preventable driver of substantial cancer incidence and mortality, calling for stronger control policies that also address emerging vulnerabilities among women.
Prevalence and trends of cigarette smoking among adults with HIV infection compared with the general population in Korea
Boyoung Park, Yoonyoung Jang, Taehwa Kim, Yunsu Choi, Kyoung Hwan Ahn, Jung Ho Kim, Hye Seong, Jun Yong Choi, Hyo Youl Kim, Joon Young Song, Shin-Woo Kim, Hee Jung Choi, Dae Won Park, Young Kyung Yoon, Sang Il Kim
Epidemiol Health. 2024;46:e2024097.   Published online December 16, 2024
DOI: https://doi.org/10.4178/epih.e2024097
  • 10,426 View
  • 224 Download
  • 1 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
This study compared the current smoking prevalence among adults with human immunodeficiency virus (HIV) infection to that of the general Korean population and analyzed changes in smoking prevalence and cessation rates from 2009 to 2020.
METHODS
The study included a total of 10,980 adults with HIV infection who underwent a health screening examination (National Health Insurance Service-National Health Information Database; NHIS-NHID), 1,230 individuals with HIV infection who participated in the Korea HIV/AIDS Cohort (KoCosHIV), and 76,783 participants from the Korea National Health and Nutrition Examination Survey (KNHANES). We estimated the current smoking prevalence and the quit ratio, defined as the ratio of former smokers to ever-smokers.
RESULTS
In the NHIS-NHID and KoCosHIV studies, the prevalence of current and former smoking among adults with HIV was 44.2% (95% confidence interval [CI], 43.2 to 45.1) and 15.6% (95% CI, 14.9 to 16.3), and 47.7% (95% CI, 43.7 to 51.8) and 16.9% (95% CI, 11.8 to 22.0), respectively. In the KNHANES, these rates were 22.5% and 18.1%, respectively. The standardized prevalence ratio of current smoking among adults with HIV was 1.76 in the NHIS-NHID and 1.97 in the KoCosHIV. Furthermore, the likelihood of quitting smoking was lower among adults with HIV than in the general population (NHIS-NHID: 26.1%; 95% CI, 25.0 to 27.1; KoCosHIV: 26.2%; 95% CI, 20.2 to 32.1; KNHANES: 44.6%; 95% CI, 44.5 to 44.6). Among HIV-positive adults, there was a 1.53% decline in the current smoking rate and a 2.86% increase in the quit ratio.
CONCLUSIONS
Adults with HIV were more likely to smoke and less likely to quit smoking than the general adult population. Tobacco screening and cessation strategies should specifically target this population.
Summary
Korean summary
HIV 감염자에서 일반인구와 비교한 현재흡연의 표준화 유병비는 1.76-1.97이었음 HIV 감염자의 현재 흡연율은 연평균 1.53% 감소하고, 흡연자의 금연율은 연평균 2.86% 증가함 HIV 감염자들은 일반인구와 비교해서 흡연율이 높고,흡연자의 금연율은 낮음
Key Message
The standardized prevalence ratio of current smoking among adults with HIV compared with general population was 1.76 ~ 1.97. Among HIV-positive adults, there was a 1.53% decline in the current smoking rate and a 2.86% increase in the quit ratio. Adults with HIV were more likely to smoke and less likely to quit smoking than the general adult population.

Citations

Citations to this article as recorded by  
  • Longitudinal Observation by Optical Coherence Tomography in Patients Treated with Ethambutol: A Systematic Review and Meta-Analysis
    Rui Luo, Jin Ma, Yong Zhong
    Journal of Clinical Medicine.2026; 15(3): 1230.     CrossRef
Association between smoking status and subclinical coronary atherosclerosis in asymptomatic Korean individuals
Hyeji Lee, Jinhee Ha, Kyung Sun Park, Young-Jee Jeon, Sangwoo Park, Soe Hee Ann, Yong-Giun Kim, Yongjik Lee, Woon Jung Kwon, Seong Hoon Choi, Seungbong Han, Gyung-Min Park
Epidemiol Health. 2024;46:e2024064.   Published online July 16, 2024
DOI: https://doi.org/10.4178/epih.e2024064
  • 8,760 View
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
In this study, we sought to evaluate the association between smoking status and subclinical coronary atherosclerosis, as detected by coronary computed tomography angiography (CCTA), in asymptomatic individuals.
METHODS
We retrospectively analyzed 9,285 asymptomatic participants (mean age, 53.7±8.0 years; n=6,017, 64.8% male) with no history of coronary artery disease (CAD) who had undergone self-referred CCTA. Of these participants, 4,333 (46.7%) were considered never smokers, 2,885 (31.1%) former smokers, and 2,067 (22.3%) current smokers. We assessed the degree and characteristics of subclinical coronary atherosclerosis using CCTA, with obstructive CAD defined as a diameter stenosis of at least 50%.
RESULTS
Compared with never-smokers, former smokers exhibited no significant differences in the probabilities of obstructive CAD, any coronary plaque, calcified plaque, or mixed plaque, as determined using adjusted odds ratios (aORs; p>0.05 for all). However, the risk of non-calcified plaque was significantly higher in former smokers (aOR, 1.34; 95% confidence interval [CI], 1.00 to 1.78; p=0.048). Current smokers had significantly higher rates of obstructive CAD (aOR, 1.46; 95% CI, 1.10 to 1.96; p=0.010), any coronary plaque (aOR, 1.41; 95% CI, 1.20 to 1.65; p<0.001), calcified plaque (aOR, 1.32; 95% CI, 1.13 to 1.55; p=0.001), non-calcified plaque (aOR, 1.72; 95% CI, 1.28 to 2.32; p<0.001), and mixed plaque (aOR, 2.00; 95% CI, 1.39 to 2.86; p<0.001) compared to never smokers.
CONCLUSIONS
This cross-sectional study revealed a significant association between current smoking and subclinical coronary atherosclerosis, as detected on CCTA. Additionally, former smoking demonstrated an association with non-calcified plaque, indicating elevated cardiovascular risk.
Summary
Korean summary
- 현재흡연은 무증상 관상동맥 죽상경화증의 독립적인 예측 인자이다. - 과거흡연은 초기 죽상경화증과 취약성을 반영하는 비석회화 플라크와 관련이 있다. - 무증상 관상동맥 죽상경화증을 예방하기 위해 적절한 금연 전략이 필요하다.
Key Message
- Current smoking is an independent predictor of subclinical coronary atherosclerosis. - Former smoking is associated with non-calcified plaque reflecting the early atherosclerosis and vulnerability. - Appropriate strategies for smoking cessation are needed to prevent subclinical coronary atherosclerosis.
Impact of electronic cigarette use on the increased risk of diabetes: the Korean Community Health Survey
Wonseok Jeong, Seungju Kim
Epidemiol Health. 2024;46:e2024029.   Published online February 13, 2024
DOI: https://doi.org/10.4178/epih.e2024029
  • 16,621 View
  • 189 Download
  • 4 Web of Science
  • 6 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Only a few studies have solely investigated the health impacts of electronic cigarettes on diabetes while considering the impact of conventional cigarettes. Therefore, this study aimed to examine the effect of electronic cigarette smoking on diabetes in Korean dual smokers, electronic cigarette smokers, conventional cigarette smokers, and non-smokers.
METHODS
Data were obtained from the 2021 and 2022 Korean Community Health Surveys of 460,603 Korean adults. The main independent variable was smoking behavior. Participants were categorized according to their smoking behavior, as dual smokers, electronic cigarette smokers, conventional cigarette smokers, and non-smokers. The dependent variable, the presence of diabetes, was defined by a doctor’s diagnosis. Multiple logistic regression analysis was performed to examine the association between smoking behavior and diabetes. Subgroup analyses were also performed to investigate the associations among different socioeconomic groups.
RESULTS
Conventional cigarette smokers had a higher risk of diabetes than did non-smokers (adjusted odds ratio [aOR], 1.22; 95% confidence interval [CI], 1.19 to 1.26). More importantly, those who only vaped electronic cigarettes were at high risk of diabetes (aOR, 1.15; 95% CI, 1.01 to 1.31). Lastly, dual smokers had the highest aOR for diabetes among other smoking behavior groups (aOR, 1.39; 95% CI, 1.22 to 1.58). Dual smoking was associated with the highest risk of diabetes in most subgroups.
CONCLUSIONS
This study suggests that conventional cigarette use and smoking electronic cigarettes negatively impact diabetes, and using both types leads to worse health outcomes. Therefore, cessation of all types of smoking is necessary for a healthy life.
Summary
Korean summary
이 연구는 한국의 이중 흡연자, 전자담배 흡연자, 일반 담배 흡연자 및 비흡연자들 사이에서 전자담배가 당뇨병에 미치는 영향을 조사하였다. 데이터는 460,603명의 한국 성인을 대상으로 한 2021년과 2022년 한국 지역사회 건강 조사를 사용하였다. 우리는 일반 담배나 전자담배 사용이 당뇨병에 부정적인 영향을 미친다는 것을 발견했으며, 두 가지를 함께 사용하면 건강 상태가 더욱 악화될 수 있다. 이에, 건강한 삶을 유지하기 위해서는 모든 형태의 흡연을 중단하는 것이 필수적이다.
Key Message
This study investigated how smoking electronic cigarettes affects diabetes among Korean dual smokers, electronic cigarette smokers, conventional cigarette smokers, and non-smokers. Data were obtained from the 2021 and 2022 Korean Community Health Surveys of 460,603 Korean adults. We found that using traditional cigarettes or electronic cigarettes adversely affects diabetes, and the combined use of both can lead to worse health outcomes. Therefore, quitting all forms of smoking is essential for maintaining a healthy life.

Citations

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  • Molecular Health Effects of Electronic Cigarettes
    Paweł Sutkowy, Igor Hadryś, Wiktor Gmys, Przemysław Grzempa, Aleksandra Sobieszczańska, Weronika Tuska, Karolina Błachnio, Alina Woźniak
    Biomolecules.2026; 16(2): 264.     CrossRef
  • Association Between Electronic Cigarette Use and Risk of Obstructive Sleep Apnea Among Korean Adults: A Cross-Sectional Nationwide Population-Based Study
    Wonseok Jeong, Min Ji Song, Ji Hye Shin, Ji Hyun Kim
    Journal of Clinical Medicine.2025; 14(11): 3616.     CrossRef
  • Tobacco, electronic cigarette, alcohol and cannabis use among individuals diagnosed with diabetes. A national survey in France
    Ivan Berlin, Romain Guignard, Sandrine Fosse-Edorh, Guillemette Quatremère, Emmanuel Lahaie, Viêt Nguyen-Thanh
    Primary Care Diabetes.2025; 19(5): 478.     CrossRef
  • New nicotine and tobacco products and risk of major diseases: A review of the scientific evidence
    Sofia Carlsson, Miranda Beck, Anna Bergström, Kristian Dreij, Koustav Ganguly, Maria Kippler, Federica Laguzzi, Karin Leander, Donghau Lu, Lena Palmberg, Swapna Upadhyay, Anna Zettergren, Göran Pershagen
    Scandinavian Journal of Public Health.2025;[Epub]     CrossRef
  • Differential associations between smoking, e-cigarette use, and diabetes prevalence
    Yusuff Adebayo Adebisi, Chimwemwe Ngoma, Davide Campagna, Antonio Ceriello, Najim Z. Alshahrani, Anoop Misra, Abdul Basit, Cristina Russo, Tadej Battelino, Noel Somasundaram, Muhammad Yazid Jalaludin, Phuong Le Dinh, Yoshifumi Saisho, Magdalena Walicka, V
    Diabetes & Metabolic Syndrome: Clinical Research & Reviews.2025; 19(10): 103331.     CrossRef
  • Investigating Pre-pregnancy and Late-Pregnancy E-cigarette Use Exposure and Gestational Diabetes Mellitus
    Elizabeth R Burgess, Hope M Cherian, Carter Wegner, Grettel Castro, Marcia Varella
    Cureus.2025;[Epub]     CrossRef
Associations of active and passive tobacco exposure with elevated blood pressure in Korean adolescents
Hyerin Park, Hyunsuk Jeong, Hyeon Woo Yim, Sanghyuk Bae
Epidemiol Health. 2024;46:e2024028.   Published online February 13, 2024
DOI: https://doi.org/10.4178/epih.e2024028
  • 16,133 View
  • 278 Download
  • 3 Web of Science
  • 4 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
To test the hypothesis that tobacco exposure is associated with elevated blood pressure (EBP) in Korean adolescents, and that the association is dose dependent.
METHODS
This cross-sectional study used data from the 2011-2020 Korea National Health and Nutrition Survey (KNHANES). Subjects were eligible if they were 13-18 years at the time of participation in KNHANES. Tobacco exposure was defined by urine cotinine level. The main outcomes were EBP and hypertension. Statistical analyses were conducted using SAS version 9.4 with appropriate sampling weights to account for the complex survey design, stratification, and cluster variable.
RESULTS
A total of 2,518 adolescents was included in the analysis, representing 2.5 million Korean adolescents. The mean± standard deviation participant age was 15.3±1.7 years, and 55.3% were male. The number of participants with active tobacco smoke exposure was 283 (11.2%), passive tobacco smoke exposure was 145 (5.8%), and no smoke exposure was 2,090 (83.0%). Analysis of the 2,518 urine-cotinine-verified participants showed that tobacco smoke exposure had a significant effect on EBP: with an odds of elevated blood pressure of 3.00 (95% confidence interval [CI], 1.14 to 7.89). The odds of hypertension were 3.61 (95% CI, 1.13 to 11.49) in the active smoking group compared with the no tobacco exposure group after adjustment for potential confounders.
CONCLUSIONS
It is necessary to present a range of public health plans to reduce tobacco exposure that affects adolescents’ blood pressure, and further research with a larger number of participants using urine cotinine as a biomarker is needed.
Summary
Korean summary
청소년기의 고혈압은 성인기의 다양한 질병을 초래할 수 있는 주요 원인이다. 흡연과 고혈압의 관계에 관한 다수의 연구들이 있으나 상반된 결과들이 보고되었고 국내 청소년의 직 간접적 담배 연기 노출과 혈압과의 연관성은 명확하게 밝혀지지 않았다. 따라서 본 연구에서는 한국 청소년에서 담배 연기 노출과 혈압 상승과의 연관성을 확인해 보고자 하였다. 연구 결과 직접 흡연을 하는 청소년들은 비흡연군에 비하여 3배 이상 혈압이 증가하는 것으로 나타났다.
Key Message
Hypertension during adolescence is a leading cause of disease in adults. The relationship between smoking and hypertension has been studied, but findings between studies are conflicting. Nicotine is a known toxin, but the relationship between active and passive smoking and blood pressure in adolescents is not clear. So that we tested and found adolescents in Korea who were active smokers showed over 3-fold increased risk of elevated blood pressure.

Citations

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  • Early effects of cigarette smoke on adolescent endothelial functions: a novel endocan/cotinine ratio approach
    Elanur Yolal Karimov, Elnur Karimov, Kazım Okan Dolu, Mustafa Özçetin, Ayşe Kılıç
    International Journal of Adolescent Medicine and Health.2026;[Epub]     CrossRef
  • JSH2024 smoke-free declaration “Stop All Tobacco Products”
    Kimika Arakawa, Yuichi Akasaki, Ako Fukami, Satoko Sakata, Ken Sugimoto, Hirochika Ryuno, Mai Kabayama, Mitsuru Ohishi, Koichi Node
    Hypertension Research.2025; 48(2): 449.     CrossRef
  • Current status of elevated blood pressure and hypertension among adolescents in Asia: a systematic review
    Binish Islam, Tasiu Ibrahim Ibrahim, Wang Tingting, Mingyang Wu, Qin Jiabi
    Journal of Global Health.2025;[Epub]     CrossRef
  • Global, regional, and national trends in the epidemiology of aortic aneurysms among women of childbearing age, 1990–2021, with predictions through 2036
    Wei Wang, Yong Shi, Xinyao Li, Tianxiang Gu, Enyi Shi
    BMC Public Health.2025;[Epub]     CrossRef
Smoking-attributable mortality among Korean adults in 2019
Yeun Soo Yang, Keum Ji Jung, Heejin Kimm, Sunmi Lee, Sun Ha Jee
Epidemiol Health. 2024;46:e2024011.   Published online December 19, 2023
DOI: https://doi.org/10.4178/epih.e2024011
  • 13,322 View
  • 168 Download
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Tobacco use ranks among the leading preventable causes of death worldwide. This study was conducted to calculate the mortality rate attributable to smoking in Korea for 2019 and to highlight the importance of tracking and monitoring smoking-related deaths for public health purposes.
METHODS
Population attributable risk (PAR) was used to estimate the number of deaths related to smoking in 2019. PAR percentages were applied to the estimated mortality figures for various diseases, with PAR determined based on relative risk (RR). Levin’s formula was used to calculate PAR, and RR was adjusted for age and alcohol consumption using Cox proportional hazards regression model to derive disease-specific regression coefficients. The analysis incorporated previously determined smoking rates from 1985, and use rates of novel tobacco products were not considered.
RESULTS
The findings revealed a total of 67,982 smoking-attributable deaths in Korea in 2019, 56,993 of which occurred in men and 11,049 in women. The PAR of smoking for various causes of death in adult men was highest for lung cancer at 74.9%, followed by pneumonia (29.4%), ischemic heart disease (42.3%), and stroke (30.2%). For women, the PAR for smoking-related death was highest for lung cancer (19.9%), followed by stroke (7.6%), pneumonia (5.7%), and ischemic heart disease (9.1%).
CONCLUSIONS
In countries experiencing rapid fluctuations in smoking rates, including Korea, regular studies on smoking-related mortality is imperative. Furthermore, it is necessary to investigate smoking-related deaths, including the prevalence of novel tobacco product use, to accurately gauge the risks associated with emerging tobacco products.
Summary
Korean summary
이 연구는 2019년 한국에서 흡연으로 인한 사망률을 계산하고 공중 보건 목적을 위한 흡연 관련 사망추적 및 모니터링의 중요성을 강조합니다. 연구 결과, 2019년 한국에서 흡연으로 인해 총 67,982명이 사망했으며, 이 중 남성이 56,993명, 여성이 11,049명이었습니다. 특히 남성의 경우 폐암(74.9%), 여성의 경우 폐암(19.9%)에서 흡연으로 인한 사망 위험이 가장 높게 나타났습니다.
Key Message
This study analyzed deaths attributable to smoking in Korea in 2019, revealing that a total of 67,982 individuals lost their lives due to smoking. Among these, 56,993 were men and 11,049 were women, with the highest smoking-related mortality rate observed in men due to lung cancer at 74.9%, and in women due to lung cancer at 19.9%. Through these findings, this research emphasizes the importance of tracking and monitoring smoking-related deaths for public health.
Decrease in household secondhand smoking among Korean adolescents associated with smoke-free policies: grade-period-cohort and interrupted time series analyses
Hana Kim, Heewon Kang, Sung-il Cho
Epidemiol Health. 2024;46:e2024009.   Published online December 13, 2023
DOI: https://doi.org/10.4178/epih.e2024009
  • 12,678 View
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Smoke-free areas have expanded and related campaigns have been implemented since 1995 in Korea. As a result, household secondhand smoke (SHS) exposure has decreased over the past 15 years. We assessed the cohort effect, the effect of a 2008 campaign on household SHS exposure, and the impact of a complete smoking ban in public places along with increased penalties, as implemented in December 2011.
METHODS
Nationally representative cross-sectional 15-wave survey data of Korean adolescents were used. The 810,516 participants were classified into 6 grade groups, 15 period groups, and 20 middle school admission cohorts. An age-period-cohort analysis, conducted with the intrinsic estimator method, was used to assess the cohort effect of household SHS exposure, and interrupted-time series analyses were conducted to evaluate the effects of the smoke-free policy and the campaign.
RESULTS
For cohorts who entered middle school from 2002 to 2008, the risk of household SHS exposure decreased among both boys and girls. Immediately after implementation of the smoke-free policy, the prevalence of household SHS exposure by period decreased significantly for boys (coefficient, -8.96; p<0.05) and non-significantly for girls (coefficient, -6.99; p=0.07). After the campaign, there was a significant decrease in household SHS exposure by cohort among boys, both immediately and post-intervention (coefficient, -4.84; p=0.03; coefficient, -1.22; p=0.02, respectively).
CONCLUSIONS
A school-admission-cohort effect was found on household SHS exposure among adolescents, which was associated with the smoke-free policy and the campaign. Anti-smoking interventions should be implemented consistently and simultaneously.
Summary
Korean summary
지난 15년 동안 한국 청소년의 가정 내 간접흡연 노출은 감소했다. 가정 내 간접흡연 노출에 대하여 중학교 입학 코호트 효과가 존재하였다. 또한, 청소년의 가정 내 간접흡연 노출 감소는 2011년 12월 공공장소에서의 금연구역 규제와 2008년 시행된 캠페인과 연관되어 있었다.
Key Message
Household secondhand smoke (SHS) exposure among Korean adolescents has decreased over the past 15 years. There was a school admission cohort effect on household SHS exposure. A complete smoking ban in public space with increased penalties in December 2011 and a campaign in 2008 to avoid SHS exposure were associated with reduced household SHS exposure among adolescents.

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  • Effectiveness of tobacco control policy interventions on tobacco use behaviours and health outcomes based on ITS research methodology: a scoping review
    Ying Shi, Dan Qin, Haiyin Wang, Lihang Sun, Kaicheng Gu
    BMJ Open.2025; 15(11): e094148.     CrossRef
The association between tobacco or nicotine product use behaviors and non-compliance with mask-wearing during the COVID-19 pandemic: a cross-sectional study in Korea
Da-eun Lee, Heewon Kang, Sung-il Cho
Epidemiol Health. 2022;44:e2022087.   Published online October 7, 2022
DOI: https://doi.org/10.4178/epih.e2022087
  • 12,630 View
  • 271 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
It is necessary to investigate tobacco or nicotine product (TNP) use which acts as a risk factor for coronavirus disease 2019 (COVID-19) infection. Especially, wearing a mask is difficult to practice while using TNP. Therefore, this study aimed to examine the association between TNP use behaviors and non-compliance with mask-wearing during the COVID-19 pandemic.
METHODS
The samples of 208,618 Korean adults from 2020 Community Health Survey in Korea were used. As an independent variable, TNP use behaviors such as TNP use status, changes in TNP use after the COVID-19 outbreak, TNP types, and attempt to quit were analyzed. Logistic regression was performed on gender-stratified participants.
RESULTS
Among men, the odds ratio (OR) of current and former TNP users were 2.00 (95% confidence interval [CI], 1.66 to 2.40) and 1.32 (95% CI, 1.09 to 1.60), respectively, compared to never users. In women, OR was 1.50 (95% CI, 1.00 to 2.26) for former users. Cigarette use was more associated with not wearing a mask than non-cigarette tobacco or nicotine product (NCTNP) use (OR, 1.53; 95% CI, 1.12 to 2.08). Men whose TNP use decreased had lower non-compliance (OR, 0.52; 95% CI, 0.36 to 0.74); while women whose TNP use increased had lower non-compliance (OR, 0.13; 95% CI, 0.07 to 0.26).
CONCLUSIONS
Current and former users were less likely to wear masks. Cigarette use was more associated with not wearing a mask than NCTNP use. Changes in TNP use showed association for men and women; however, in the opposite direction. Therefore, more attention should be paid to TNP use prevention and cessation support during the epidemic of respiratory infectious diseases. Moreover, it is necessary to identify risk factors of cigarette users in compliance with mask-wearing.
Summary
Korean summary
담배 또는 니코틴 제품 (Tobacco or Nicotine Products, TNPs) 현재사용자와 과거사용자는 비사용자 대비 마스크 미착용 연관성이 높고, 비궐련 담배 또는 니코틴 제품 (Non-Cigarette Tobacco or Nicotine Products, NCTNPs) 사용자보다는 일반담배 사용자의 마스크 미착용 연관성이 높다. 남성에서는 코로나19 유행 이전 대비 TNPs 사용이 감소했을 때, 여성에서는 증가했을 때 마스크 미착용 연관성이 낮았다. 따라서 호흡기 감염병 유행 시기에는 더욱 TNPs 사용 예방과 금연 지원에 관심을 가질 것을 제안한다.
Key Message
During the epidemic of respiratory infectious diseases, more attention should be paid to tobacco or nicotine products (TNPs) use prevention and cessation support.
The risk of gastric cancer according to changes in smoking status among Korean men
Sung Keun Park, Min-Ho Kim, Chang-Mo Oh, Eunhee Ha, Eun Hye Yang, Woo Yeon Hwang, Ann Hee You, Jae-Hong Ryoo
Epidemiol Health. 2022;44:e2022086.   Published online October 7, 2022
DOI: https://doi.org/10.4178/epih.e2022086
  • 16,347 View
  • 232 Download
  • 8 Web of Science
  • 8 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Smoking is a risk factor for gastric cancer. Studies have shown that the risk of gastric cancer can vary by smoking status and smoking amount at a single point in time. However, few data have been reported about the effect of changes in smoking status over time on the risk of gastric cancer.
METHODS
This study collected data from the National Health Insurance Corporation in Korea on 97,700 Korean men without gastric cancer who underwent health check-ups from 2002 to 2013. The smoking status (never smoked, quit smoking, and currently smoking) of study participants was assessed in 2003-2004 and 2009, and the results were categorized into 7 groups: never-never, never-quit, never-current, quit-quit, quit-current, current-quit, and current-current. Participants were followed until 2013 to identify incident gastric cancer. A multivariate Cox proportional hazard model was used to calculate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for incident gastric cancer according to changes in smoking status and smoking amount (pack-years).
RESULTS
Compared with group 1 (never-never), participants currently smoking in 2009 (never-current, quit-current, and current-current) had higher HRs for gastric cancer (never-quit: 1.077; 95% CI, 0.887 to 1.306, never-current: 1.347; 95% CI, 0.983 to1.846, quit-quit: 1.086; 95% CI, 0.863 to 1.366, quit-current: 1.538; 95% CI, 1.042 to 2.269, current-quit: 1.339; 95% CI, 1.077 to 1.666, and current-current: 1.589; 95% CI, 1.355 to 1.864, respectively). The risk for gastric cancer was highest in heavy smokers, followed by moderate smokers.
CONCLUSIONS
In all categories of smoking status, current smoking was associated with the highest risk of gastric cancer. Heavy smoking was associated with an increased risk of gastric cancer, even in former smokers.
Summary
Korean summary
현재 흡연자의 경우 과거 흡연여부와 관계 없이 위암의 위험성이 가장 증가한다. 과거 흡연자의 경우에는 흡연량이 많은 경우에는 위암의 위험성이 증가한다. 이런 결과는 금연이나 흡연량을 줄이는 것이 위암의 위험성을 감소시키는데 매우 중요한 요인이란 것을 확인할 수 있다.
Key Message
Current smoking was associated with an increased risk of gastric cancer, regardless of previous smoking status. Although former smoking was not associated with an increased risk of gastric cancer, former smokers with a history of heavy smoking had an increased risk of gastric cancer. These results suggest that smoking cessation and reducing smoking amounts are both important factors in reducing the risk of gastric cancer.

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    Adesola Oje, Jonathan Galati, Richard M. Peek
    Gastroenterology Clinics of North America.2025; 54(2): 397.     CrossRef
  • Impact of smoking and opium cessation on gastrointestinal cancer risk: A 15-year longitudinal study in Golestan Cohort
    Masoume Mansouri, Ali Sheidaei, Hossein Poustchi, Gholamreza Roshandel, Reza Malekzadeh, Akram Pourshams, Sadaf G. Sepanlou
    Scientific Reports.2025;[Epub]     CrossRef
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    Daniel Hyun Kim, Sanjiti Podury, Aida Fallah Zadeh, Tara Mahmoodi, Sophia Kwon, Gabriele Grunig, Mengling Liu, Anna Nolan
    Scientific Reports.2025;[Epub]     CrossRef
  • Association between smoking cessation and recurrence of gastric cancer: A retrospective study based on the National Health and Nutrition Examination Surveys (NHANES) 1999-2018
    Yonglin Li, Yanhong Liang
    Innovative Healthcare in Medicine and Nursing.2025; 1(1): 12.     CrossRef
  • ATR-CHK1 Axis Inhibitors in Gastric Cancer Treatment
    Mateusz Kciuk, Renata Gruszka, Marta Aleksandrowicz, Agnieszka Śliwińska, Renata Kontek
    International Journal of Molecular Sciences.2025; 26(16): 7709.     CrossRef
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    Ana Isabel Ferreira, Tiago Lima Capela, Vítor Macedo Silva, Sofia Xavier, Pedro Boal Carvalho, Joana Magalhães, José Cotter
    Scandinavian Journal of Gastroenterology.2024; 59(2): 125.     CrossRef
  • Lifestyle Behaviors in Patients With Gastric Cancer: Continuous Need for Alcohol Abstinence and Muscle Strength Training Education
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    Journal of Gastric Cancer.2024; 24(3): 316.     CrossRef
  • Gastric cancer—Epidemiology, modifiable and non-modifiable risk factors, challenges and opportunities: An updated review
    Tajul Islam Mamun, Sabrina Younus, Md. Hashibur Rahman
    Cancer Treatment and Research Communications.2024; 41: 100845.     CrossRef
The associations of the national health and productivity management program with corporate profits in Japan
Yuichiro Yano, Hiroshi Kanegae, Koichi Node, Atsushi Mizuno, Akira Nishiyama, Hiromi Rakugi, Hiroshi Itoh, Kaori Kitaoka, Naoki Kashihara, Fumiaki Ikeno, Ichiro Tsuji, Kunio Okada
Epidemiol Health. 2022;44:e2022080.   Published online September 23, 2022
DOI: https://doi.org/10.4178/epih.e2022080
  • 22,328 View
  • 472 Download
  • 6 Web of Science
  • 7 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Using a dataset from a survey on national health and productivity management, we identified health and productivity factors associated with organizational profitability.
METHODS
The Ministry of Economy, Trade and Industry conducted an annual survey on Health and Productivity Management between 2014 and 2021. We assessed the associations of organizational health and productivity management using survey questions collected in 2017 and 2018, with the rate of change in profits from 2017 and 2018 to 2020. We identified factors associated with organizational profitability using eXtreme Gradient Boosting, and calculated SHapley Additive exPlanation (SHAP) values for each factor.
RESULTS
Among 1,593 companies (n= 4,359,834 employees), the mean age of employees at baseline was 40.3 years and the proportion of women was 25.8%. A confusion matrix for evaluating model performance had an accuracy of 0.997, precision of 0.993, recall of 0.997, and area under the precision-recall curve of 0.999. The most important factors related to an increase in corporate profits were the percentage of current smokers (SHAP value, 0.121), per-employee cost of health services (0.084) and medical services (0.050); the percentage of full-time employees working in sales departments (0.074) and distribution or customer service departments (0.054); the percentage of employees who slept well (0.055); and the percentage of employees within a company who regularly exercised (0.043).
CONCLUSIONS
Employees’ lifestyle-related health risk factors and organizations’ management systems were associated with organizational profitability. Lifestyle medicine professionals may demonstrate a significant return on investment by creating a healthier and more productive workforce.
Summary
Key Message
Lifestyle medicine professionals may demonstrate a significant return on investment by creating a healthier and more productive workforce

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  • Key Performance Indicators in Workplace Health Promotion
    Kosuke Sakai, Shoko Nakazawa, Yuko Furuya, Kota Fukai, Kei Sano, Masayuki Tatemichi
    Journal of Occupational & Environmental Medicine.2026; 68(1): e61.     CrossRef
  • Incorporating Lifestyle Medicine Into Occupational Medicine Practice
    Pamela A. Hymel, Gregg M. Stave, Wayne N. Burton, Alyssa B. Schultz, Nathan Jones, Jeffrey Liva, Richard D. Price, Ron Loeppke, Ronald Stout, Kenji Saito
    Journal of Occupational & Environmental Medicine.2025; 67(1): e72.     CrossRef
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    Kazushirou Kurogi, Kazunori Ikegami, Hajime Ando, Akira Ogami
    Journal of Occupational Health.2025;[Epub]     CrossRef
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    Gahao Chen, Ziwei Yang, Benjamin M. Liu
    PLOS One.2025; 20(7): e0327564.     CrossRef
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    Ye Fu, Xiaohua Jin, Srinath Perera, Bashir Tijani, Prakriti Pokhrel
    Engineering, Construction and Architectural Management.2025; : 1.     CrossRef
  • The association between employee lifestyles and the rates of mental health-related absenteeism and turnover in Japanese companies
    Atsuya Fujimoto, Hiroshi Kanegae, Kaori Kitaoka, Mizuki Ohashi, Kunio Okada, Koichi Node, Kenkichi Takase, Hiroshi Fukuda, Tomoyuki Miyazaki, Yuichiro Yano
    Epidemiology and Health.2024; 46: e2024068.     CrossRef
  • Role and Value of the Corporate Medical Director
    Gregg M. Stave, Wayne N. Burton, Richard J.L. Heron, T. Warner Hudson, J. Brent Pawlecki, David Roomes, Martin J. Sepulveda, Michael Rendel, Pamela A. Hymel
    Journal of Occupational & Environmental Medicine.2023; 65(12): e797.     CrossRef
Prediction of cancer survivors’ mortality risk in Korea: a 25-year nationwide prospective cohort study
Yeun Soo Yang, Heejin Kimm, Keum Ji Jung, Seulji Moon, Sunmi Lee, Sun Ha Jee
Epidemiol Health. 2022;44:e2022075.   Published online September 13, 2022
DOI: https://doi.org/10.4178/epih.e2022075
  • 20,339 View
  • 206 Download
  • 3 Web of Science
  • 4 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to investigate the factors affecting cancer survival and develop a mortality prediction model for Korean cancer survivors. Our study identified lifestyle and mortality risk factors and attempted to determine whether health-promoting lifestyles affect mortality.
METHODS
Among the 1,637,287 participants in the Korean Cancer Prevention Study (KCPS) cohort, 200,834 cancer survivors who were alive after cancer diagnosis were analyzed. Discrimination and calibration for predicting the 10-year mortality risk were evaluated. A prediction model was derived using the Cox model coefficients, mean risk factor values, and mean mortality from the cancer survivors in the KCPS cohort.
RESULTS
During the 21.6-year follow-up, the all-cause mortality rates of cancer survivors were 57.2% and 39.4% in men and women, respectively. Men, older age, current smoking, and a history of diabetes were high-risk factors for mortality, while exercise habits and a family history of cancer were associated with reduced risk. The prediction model discrimination in the validation dataset for both KCPS all-cause mortality and KCPS cancer mortality was shown by C-statistics of 0.69 and 0.68, respectively. Based on the constructed prediction models, when we modified exercise status and smoking status, as modifiable factors, the cancer survivors’ risk of mortality decreased linearly.
CONCLUSIONS
A mortality prediction model for cancer survivors was developed that may be helpful in supporting a healthy life. Lifestyle modifications in cancer survivors may affect their risk of mortality in the future.
Summary
Korean summary
현재 암 생존자의 사망 위험을 평가하는 데 유용한 한국형 암 생존자 사망률 예측 모델은 없습니다. 본 연구에서는 고령, 남성, 현재 흡연, 당뇨병 병력을 포함한 생활양식 요인이 사망의 고위험 요인인 반면, 운동 습관 및 암의 가족력은 사망 위험을 감소시키는 것으로 나타났습니다. 현재 흡연과 운동 습관은 사망 위험에 영향을 미치는 수정 가능한 두 가지 요소로써, 이러한 생활습관 요인으로 구성된 예측모형은 생활습관 교정을 통해 우리나라 암 생존자의 사망률을 낮출 수 있음을 시사합니다.
Key Message
Currently, there is no Korean mortality prediction model for cancer survivors that would be useful in evaluating their risk of mortality. The present study showed that lifestyle factors, including older age, male sex, current smoking, and history of diabetes were high-risk factors for mortality, while exercise habits and a family history of cancer reduced the risk of mortality. Current smoking and exercise habits are the two modifiable factors that affected the risk of mortality. The prediction model comprising these lifestyle factors implies that the risk of mortality of cancer survivors in Korea can be reduced through lifestyle modification.

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  • A comparative study of health behaviors in adult male cancer survivors and the general male population in Korea: from the Korea national health and nutrition examination survey VII-VIII (2016–2021)
    Hyein Jung, Yoonjoo Choi, Byungmi Kim
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COVID-19: Special Article
Smoking, drinking, and physical activity among Korean adults before and during the COVID-19 pandemic: a special report of the 2020 Korea National Health and Nutrition Examination Survey
Sunhye Choi, Jinwook Bahk, Suyeon Park, Kyungwon Oh, Kyunghee Jung-Choi
Epidemiol Health. 2022;44:e2022043.   Published online April 25, 2022
DOI: https://doi.org/10.4178/epih.e2022043
  • 27,167 View
  • 621 Download
  • 14 Web of Science
  • 18 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to describe trends in health behaviours between 2011 and 2020 and compare the changes in these behaviours between the 2020 COVID-19 pandemic and previous periods according to socio-demographic variables.
METHODS
This study used data from the 2011 to 2020 Korea National Health and Nutrition Examination Survey. Current cigarette smoking, high-risk drinking, and inadequate physical activity levels were used as health behaviour indicators. The age-standardized prevalence, differences in prevalence between the periods, and the annual percentage change (APC) were calculated.
RESULTS
Current cigarette smoking showed a decreasing trend (APC, -2.6), high-risk drinking remained unchanged, and inadequate physical activity levels increased (APC, 3.5) during 2011-2020. There were significant differences in high-risk drinking (3.1%p; 95% confidence interval [CI], 0.3 to 5.9) and inadequate physical activity levels (4.3%p; 95% CI, 0.4 to 8.1) between 2019 and 2020 in men. Among men, increased high-risk drinking was found in those aged 40-49 years, non-single households, urban residents, and the middle and highest income groups between 2019 and 2020. The low educational group and manual workers among men aged 30-59 years also showed an increased proportion of high-risk drinking. Inadequate physical activity levels also increased among men between 2019 and 2020 in those aged 30-39 years, non-single households, urban residents, and the upper-middle-income group.
CONCLUSIONS
In the first year of the COVID-19 pandemic, Korean men’s high-risk drinking and inadequate physical activity levels increased. In addition to social efforts to reduce the spread of infectious diseases, active measures to positively change health behaviour are needed.
Summary
Korean summary
코로나 대유행 첫 해인 2020년, 한국 남성에서 고위험음주와 부적절한 신체 활동 수준이 증가하였다. 감염성 질환 대유행 시기, 확산을 차단하기 위한 사회적 노력과 더불어 건강행태에 부정적인 여파가 미치지 않도록 적극적인 대책이 필요함을 시사한다.
Key Message
In the first year of the COVID-19 pandemic, Korean men’s high-risk drinking and inadequate physical activity levels increased. Despite Korea's positive performance in various indicators during the COVID-19 pandemic, the socioeconomic and cultural effects of COVID-19 have affected people's health behaviour. In addition to social efforts to reduce the spread of infectious diseases, active measures to positively change health behaviour are needed.

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Original Articles
The association of pancreatic cancer incidence with smoking status and smoking amount in Korean men
Do Jin Nam, Chang-Mo Oh, Eunhee Ha, Min-Ho Kim, Eun Hye Yang, Hyo Choon Lee, Soon Su Shin, Woo Yeon Hwang, Ann Hee You, Jae-Hong Ryoo
Epidemiol Health. 2022;44:e2022040.   Published online April 21, 2022
DOI: https://doi.org/10.4178/epih.e2022040
  • 20,361 View
  • 450 Download
  • 6 Web of Science
  • 6 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Our study examined the dose-response relationship between smoking amounts (pack-years) and the risk of developing pancreatic cancer in Korean men.
METHODS
Of 125,743 participants who underwent medical health checkups in 2009, 121,408 were included in the final analysis and observed for the development of pancreatic cancer. We evaluated the associations between smoking amounts and incident pancreatic cancer in 4 groups classified by pack-year amounts. Cox proportional hazards models were used to estimate the adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) of incident pancreatic cancer by comparing groups 2 (<20 pack-year smokers), 3 (20-≤40 pack-year smokers), and 4 (>40 pack-year smokers) with group 1 (never smokers).
RESULTS
During 527,974.5 person-years of follow-up, 245 incident cases of pancreatic cancer developed between 2009 and 2013. The multivariate-adjusted HRs (95% CIs) for incident pancreatic cancer in groups 2, 3, and 4 were 1.05 (0.76 to 1.45), 1.28 (0.91 to 1.80), and 1.57 (1.00 to 2.46), respectively (p for trend=0.025). The HR (95% CI) of former smokers showed a dose-response relationship in the unadjusted model, but did not show a statistically significant association in the multivariate-adjusted model. The HR (95% CI) of current smokers showed a dose-response relationship in both the unadjusted (p for trend=0.020) and multivariate-adjusted models (p for trend=0.050).
CONCLUSIONS
The risk of developing pancreatic cancer was higher in current smokers status than in former smokers among Korean men, indicating that smoking cessation may have a protective effect.
Summary
Korean summary
본 연구에서는 대한민국 남성을 대상으로 흡연양 및 흡연상태에 따른 췌장암 발병을 분석하였다. 흡연양이 많을수록, 현재 흡연상태일수록 췌장암 발병이 높았고, 금연한 경우 췌장암의 발병이 낮은 것을 확인할 수 있었다.
Key Message
As a result of analyzing the incidence of pancreatic cancer according to the amount of smoking and smoking status among Korean men, it was confirmed that the more smoked and the current smoking status, the higher the incidence of pancreatic cancer, and the lower the incidence of pancreatic cancer when quitting smoking.

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  • Cancer attributable to tobacco smoking: a focus on primary prevention
    Kwang-Pil Ko
    Journal of the Korean Medical Association.2025; 68(2): 91.     CrossRef
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    Anne‐Laure Vedie, Nasser Laouali, Amandine Gelot, Gianluca Severi, Marie‐Christine Boutron‐Ruault, Vinciane Rebours
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    Sijie He, Li Wan
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    Natalia Michalak, Ewa Małecka-Wojciesko
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The relationship between poor sleep quality measured by the Pittsburgh Sleep Quality Index and smoking status according to sex and age: an analysis of the 2018 Korean Community Health Survey
Jun Hyun Hwang, Soon-Woo Park
Epidemiol Health. 2022;44:e2022022.   Published online February 14, 2022
DOI: https://doi.org/10.4178/epih.e2022022
  • 26,987 View
  • 506 Download
  • 9 Web of Science
  • 10 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Multiple studies have found that cigarette smokers are more likely to experience sleep disturbances than non-smokers. This study aimed to examine various associations between smoking and sleep quality according to sex and age, which have yet to be sufficiently examined in prior studies.
METHODS
Data analysis was conducted using a nationally representative sample of 224,986 Korean adults who participated in the 2018 Korea Community Health Survey. Sleep quality, as the dependent variable, was measured using the Pittsburgh Sleep Quality Index (PSQI), with PSQI scores indicating either good (≤4 points) or poor (>5 points) sleep quality. Multiple logistic regression analysis was performed considering socio-demographic factors, health behaviors, comorbidities, and psychological factors as covariates.
RESULTS
The overall weighted prevalence of poor sleep quality was 39.4% (95% confidence interval, 39.1 to 39.7). In the multivariate model that excluded psychological factors, poor sleep quality positively correlated to smoking for both sexes and all age groups except for male aged ≥65 years. However, in the full model that included psychological factors, statistically significant odds ratios (approximately 1.5) for poor sleep quality according to smoking status were only observed for female under 65 years of age.
CONCLUSIONS
The relationship between poor sleep quality and smoking status differed according to sex and age. In order to improve the quality of sleep, it is necessary to intervene smoking cessation along with solving psychological problems, especially female in middle age and younger.
Summary
Korean summary
한국 성인의 39.4%는 수면의 질(피츠버그 수면의 질 지수(PSQI) 기준)이 낮았다. 성별 및 연령에 따라 흡연과 수면의 질 사이의 관련성은 다르게 나타났다. 구체적으로는 65세 이하의 여성에서 흡연은 수면의 질 악화와 관련성이 있었으나, 남성 또는 65세 이상 여성에서는 흡연과 수면의 질 간 유의한 관련성을 보이지 않았다.
Key Message
In order to improve the quality of sleep, it is necessary to intervene smoking cessation along with solving psychological problems, especially female in middle age and younger.

Citations

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  • Prevalence and Associated Factors of Poor Sleep Quality Among ‎adults in Qatar
    Mueen Al Ansi, Ayman Al-Dahshan, AA Alyafei ‎, Mohamad Chehab, Sami Abdeen, Hanan Khudadad ‎, Nada Adil, Mohamed Aabdien, Mohamed Iheb Bougmiza
    Nature and Science of Sleep.2026; Volume 18: 1.     CrossRef
  • Sociodemographic, Clinical and Health-related Behavioural Determinants of Sleep Quality: A Cross-sectional Study Among Malaysian Adults
    Admin Admin, Nurul Afiedia Roslim, Siti Maisarah Mohd Noor, Imilia Ismail, Mohamad Izuan Mohd Din, Carmen Piernas, Aryati Ahmad
    Malaysian Journal of Medicine and Health Sciences.2026;[Epub]     CrossRef
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    Xie Zhang, Lingling Chen, Yuyu Wu, Yu‐Hsin Chen, Xingguang Luo, Zeping Xu, Weiming Hu, Yimin Kang, Li Chen, Yanlong Liu, Fan Wang, Danhui Liu
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    Nora Alafif
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    Adriano dos Santos, Serena Galiè
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    Ioanna Grigoriou, Serafeim-Chrysovalantis Kotoulas, Konstantinos Porpodis, Dionysios Spyratos, Ioanna Papagiouvanni, Alexandros Tsantos, Anastasia Michailidou, Constantinos Mourelatos, Christina Mouratidou, Ioannis Alevroudis, Alexandra Marneri, Athanasia
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Social competence, leisure time activities, and smoking trajectories among adolescent boys: data from the Korean Children & Youth Panel Survey
Eunjung Park, Min Kyung Lim, Jinju Park, Tran Thi Phuong Thao, Sukyung Jeong, Eun Young Park, Jin-Kyoung Oh
Epidemiol Health. 2021;43:e2021066.   Published online September 9, 2021
DOI: https://doi.org/10.4178/epih.e2021066
  • 15,003 View
  • 149 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
The purpose of this study was to identify the trajectories and potential predictors of tobacco use during adolescence in Korea and to develop appropriate strategies for the implementation of tobacco use prevention programs.
METHODS
The trajectory of tobacco use and associated predictors were analyzed for 1,169 male students from grade 6 (age 11-12) to grade 10 (age 15-16) in the Korean Children & Youth Panel Survey from 2012 to 2016.
RESULTS
Three trajectories of smoking experience were identified: non-smokers (class 1: n=775, 82.3%), temporary users (class 2: n=32, 3.4%), and regular users (class 3: n=135, 14.3%). When compared to non-smokers, temporary users had a higher likelihood of living with a single parent, dissatisfaction with grades, having a girlfriend, having been victimized at least once, and having at least 1 delinquent friend in grade 7 (when smoking experimentation was at its peak). Significant factors associated with regular use included having a girlfriend, committing at least 1 type of delinquent behavior, and being a non-reader. Committing at least 1 type of delinquent behavior and having at least 1 delinquent friend were associated with regular users, distinguishing them from temporary users.
CONCLUSIONS
Understanding why adolescents exhibit different trajectories of tobacco use by identifying the factors associated with each trajectory can contribute to the development of tailored prevention strategies and early cessation programs for adolescents.
Summary
Korean summary
2010-2016년 한국아동청소년패널에 포함된 남학생 흡연경험 분석을 통해 3개의 주요 흡연유형이 확인되었다 (비흡연자 82.3%, 일시 흡연자 3.4%, 지속 흡연자 14.3%). 한부모 가정, 학업성적에 대한 불만족, 이성친구를 사귀는 경우, 또래로부터 괴롭힘을 당한 경험, 1명 이상의 비행 친구가 있는 경우 일시 흡연자가 될 가능성이 높고, 비행 경험이 있는 경우, 이성 친구를 사귀는 경우, 독서를 하지 않는 경우 지속 흡연자가 될 가능성이 높았다. 청소년기 성장단계에 따른 흡연유형의 변화와 관련 요인에 대한 분석 결과는 청소년 대상 맞춤형 흡연예방 및 금연 프로그램 마련에 기여할 수 있을 것이다.
Key Message
In adolescence, significant life changes such as increasing academic workloads and various societal influences combined with growing recognition can affect their interest in trying smoking. The current study suggested that societal influence such as living with a single parent, dissatisfaction with grades, having been victimized at least once, and having at least 1 delinquent friend initiates smoking experimentation. Adolescents having a girlfriend, committing at least 1 type of delinquent behavior, and never reading have a greater possibility of smoking continuation for regular use. These findings might contribute to development of tailored prevention and early cessation programs for adolescents.
Effect of tobacco outlet density on quit attempts in Korea: a multi-level analysis of the 2015 Korean Community Health Survey
Jaehyung Kong, Sung-il Cho
Epidemiol Health. 2021;43:e2021048.   Published online August 3, 2021
DOI: https://doi.org/10.4178/epih.e2021048
  • 20,463 View
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  • 2 Web of Science
  • 2 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
This study aimed to examine whether the regional density of tobacco outlets in Korea was associated with the likelihood of attempting to quit among smokers
METHODS
This study was designed as a secondary data analysis of a cross-sectional study. Data from the 2015 Korean Community Health Survey and tobacco outlet registrations in 17 metropolitan cities and provinces with 254 communities in Korea were used for the analysis. In total, 41,013 current smokers (≥19 years of age) were included. Multi-level logistic regression analysis was conducted to investigate regional differences associated with smokers’ attempts to quit and to evaluate the effects of individual and regional characteristics on quit attempts.
RESULTS
Higher tobacco outlet density was associated with lower odds of attempting to quit. Smokers who resided in districts with the highest tobacco outlet density were 18% less likely to attempt quitting (odds ratio, 0.82; 95% confidence interval, 0.70 to 0.98) than smokers who resided in the regions with the lowest tobacco outlet density (intraclass correlation coefficient, 0.030).
CONCLUSIONS
This study showed that quit attempts were related to community-level factors, such as tobacco outlet density, as well as other individual factors. These findings support the implementation of national policies restricting the number of tobacco outlets within communities or zones and limiting tobacco marketing in tobacco outlets.
Summary
Korean summary
본 연구는 2015년 지역사회건강조사에 응답한 19세 이상 현재 흡연자 41,013명을 대상으로 금연 시도와 관련된 개인 수준의 요인과 지역 수준의 요인을 파악하기 위하여 다수준 분석을 실시하였다. 분석결과, 개인 수준의 요인뿐만 아니라 거주하는 지역의 담배소매점 밀집도가 흡연자의 금연 시도와 유의한 관계가 있는 것으로 확인되었다. 흡연조장환경 개선을 위한 담배 공급 감소 노력의 일환으로 지역사회 수준의 담배소매점 관리 정책이 필요하다.
Key Message
This study aimed to investigate whether the environment related to tobacco retailers impacts adult smokers’ attempts to quit smoking, for the first time in South Korea, using nationwide data on tobacco retailers and current smokers. Smokers who resided in districts with the highest tobacco outlet density were 18% less likely to attempt quitting (odds ratio, 0.82; 95% confidence interval, 0.70-0.98) than smokers who resided in the regions with the lowest tobacco outlet density. These findings support the implementation of national policies restricting the number of tobacco outlets within communities or zones and limiting tobacco marketing in tobacco outlets.

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  • Use of geographically weighted regression models to inform retail endgame strategies in South Korea: application to cigarette and ENDS prevalence
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Patterns and predictors of smoking relapse among inpatient smoking intervention participants: a 1-year follow-up study in Korea
Seung Eun Lee, Chul-Woung Kim, Hyo-Bin Im, Myungwha Jang
Epidemiol Health. 2021;43:e2021043.   Published online June 9, 2021
DOI: https://doi.org/10.4178/epih.e2021043
  • 23,542 View
  • 461 Download
  • 19 Web of Science
  • 20 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
This study aimed to identify relapse patterns in smokers who participated in an inpatient treatment program and to investigate factors related to relapse.
METHODS
The participants comprised 463 smokers who participated in an inpatient treatment operated by the Daejeon Tobacco Control Center from 2015 to 2018. Participants received high-intensity smoking cessation intervention for 5 consecutive days, including pharmacotherapy and behavioral support, and continued with follow-up for 1 year to determine whether they maintained smoking cessation after discharge from inpatient treatment. Kaplan-Meier and Cox proportional hazard models were used in the analysis.
RESULTS
Participants’ relapse rate within 1 year was 72.8%, and 59.8% of participants smoked again within 6 months after participation. A higher number of counseling sessions was significantly associated with a lower risk of relapse (hazard ratio [HR], 0.23; 95% confidence interval [CI], 0.17 to 0.32 for ≥9 vs. ≤5 counseling sessions). Conversely, higher relapse rates were significantly associated with the use of nicotine replacement therapy (NRT) (HR, 1.91; 95% CI, 1.43 to 2.55 for use vs. no use), and higher levels of baseline expired carbon monoxide (CO) (HR, 1.58; 95% CI, 1.21 to 2.06 for expired CO concentrations of 10-19 ppm vs. expired CO concentrations <10 ppm).
CONCLUSIONS
High-intensity smoking cessation interventions in hospital settings can be effective for smoking cessation in smokers with high nicotine dependence. In addition, the results suggest that for quitters to maintain long-term abstinence, they should receive regular follow-up counseling for 1 year after completing a high-intensity smoking cessation intervention.
Summary
Korean summary
• 한국은 국가금연정책의 일환으로 중증고도흡연자를 위해 고강도의 입원형 금연 중재 프로그램을 운영하고 있다. • 고강도 금연 중재를 받은 후 첫 6개월은 재흡연이 가장 빈번히 일어나는 시기였다. • 장기 금연을 유지하기 위해서는 고강도 금연 중재 후에도 1년간 지속적인 추후 상담이 이루어져야 한다.
Key Message
• South Korea operates a high-intensity inpatient treatment program for heavy smokers. • Relapse typically occurred in the first 6 months after completing the intervention. • Continuous 1 year follow-up counseling is important for long-term abstinence.

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Trends in health behaviors over 20 years: findings from the 1998-2018 Korea National Health and Nutrition Examination Survey
Soyeon Kim, Sunhye Choi, Jihee Kim, Suyeon Park, Young-Taek Kim, Ok Park, Kyungwon Oh
Epidemiol Health. 2021;43:e2021026.   Published online April 19, 2021
DOI: https://doi.org/10.4178/epih.e2021026
  • 27,187 View
  • 383 Download
  • 39 Web of Science
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to examine the trends in health behaviors in Korean population using data from the Korea National Health and Nutrition Examination Survey (KNHANES).
METHODS
The subjects were 96,408 adults aged 19 years or older who participated in the first (1998) through seventh (2016-2018) KNHANES health interview. The prevalence of health behaviors (cigarette smoking, alcohol drinking, and physical activity) and annual percent change (APC) were estimated using SAS and the Joinpoint program.
RESULTS
The prevalence of current cigarette smoking in men decreased by 2.8%p (APC= -2.8, p< 0.001) annually over the 20-year period, and the prevalence of exposure to secondhand smoke at home substantially decreased compared to 2005 (APC= -8.8, p< 0.001). Compared to 2005, the prevalence of current alcohol drinking in women, but not men, increased (APC= 2.0, p< 0.001), and the prevalence of binge drinking decreased in men (APC= -0.7, p< 0.001) and increased in women (APC= 2.4, p< 0.001). The prevalence of aerobic physical activity decreased from 2014 in both gendersd (p< 0.001). The prevalence of healthy behaviors practice (non-smoking, alcohol abstinence, and aerobic physical activity) was down-trending (APC= -5.3, p< 0.001), especially among women (APC= -6.4, p< 0.001).
CONCLUSIONS
Over the past 20 years, smoking behaviors improved. However, drinking behavior was unchanged and physical activity indicators markedly decreased. More active programs are necessary for improving health behaviors, which are major risk factors linked to chronic diseases.
Summary
Korean summary
국민건강영양조사(1998-2018) 자료를 활용하여 지난 20년간 성인의 건강행태를 분석한 결과 흡연율과 간접흡연 노출률은 지속적으로 감소하였고, 신체활동 실천율 또한 감소하였다. 월간음주율과 폭음률의 경우 남자는 큰 변화가 없었던 반면 여자는 모두 증가하였다.
Key Message
This study aimed to examine the trends in health behaviors in Korean population using data from the 1998-2018 Korea National Health and Nutrition Examination Survey (KNHANES). Over the past 20 years, the prevalence of cigarette smoking and exposure to secondhand smoke in Korean adults consistently decreased, as well as the prevalence of physical activity. There was no considerable change in men, whereas in women, the prevalence of alcohol drinking and binge drinking both increased.

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The effect of demographic characteristics on the relationship between smoking and dry mouth in Iran: a cross-sectional, case-control study
Shahla Kakoei, Amir Hossein Nekouei, Sina Kakooei, Hamid Najafipour
Epidemiol Health. 2021;43:e2021017.   Published online February 28, 2021
DOI: https://doi.org/10.4178/epih.e2021017
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AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
The effect of age, sex, and other demographic factors on the relationship between smoking and dry mouth remains unknown. The aim of this study was to investigate the effects of demographic characteristics on the relationship between dry mouth, also known as xerostomia, and smoking.
METHODS
This case-control study included 5,640 randomly-selected subjects from the second phase of the Kerman Coronary Artery Disease Risk Factors Study, which observed 10,000 participants from 2014 to 2018. A checklist was used to record the participants’ demographic characteristics and smoking frequency. Each participant completed a six-item Fox questionnaire to measure dry mouth as a dependent variable. The interaction terms of daily cigarette smoking with sex, age, educational level, and marital status were entered into the model. Non-significant terms were removed using hierarchical model selection.
RESULTS
Of the sample, 3,429 (60.8%) did not have dry mouth and were analyzed as controls, whereas 2,211 (39.2%) had xerostomia and were deemed to be cases. Smokers were more likely to have dry mouth in all ages and both sexes (p < 0.001). As male became older, the chance of having dry mouth increased more rapidly than among female smokers (p < 0.001). In addition, female smokers were more likely to have dry mouth than male smokers (p < 0.001).
CONCLUSIONS
The likelihood of dry mouth among daily smokers depended on age and sex. Female smokers were more likely to have dry mouth, and its likelihood increased with age in daily smokers of both sexes, though more rapidly in males.
Summary
Key Message
The relationship between dry mouth as a distressing condition and smoking has been confirmed by many studies, but so far the severity and weakness of this relationship have not been studied in terms of demographic variables. We showed that the female smokers were more likely to have dry mouth. The chance of having dry mouth increase in a male smoker more than a female smoker as age increases.

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An age-period-cohort analysis of the difference in smoking prevalence between urban and non-urban areas in Japan (2004–2019)
Tasuku Okui
Epidemiol Health. 2020;42:e2020072.   Published online December 1, 2020
DOI: https://doi.org/10.4178/epih.e2020072
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AbstractAbstract PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to conduct an age-period-cohort (APC) analysis of smoking prevalence trends in urban and non-urban areas in Japan.
METHODS
Data on smoking prevalence from 2004 to 2019 were extracted from the Comprehensive Survey of Living Conditions in Japan. Government ordinance-designated cities and special wards in Tokyo were defined as urban areas. The respondents ranged from 20 years to 79 years old, and were grouped in 5-year intervals. Cohorts were defined for each age group of each year, and those born between 1925-1929 and 1995-1999 were examined. We calculated the estimated smoking prevalence for each age, period, and cohort, as well as the smoking prevalence ratio of non-urban areas compared with urban areas from the APC analysis results.
RESULTS
The magnitude of the decrease in the period effect on smoking prevalence was larger in urban areas than in non-urban areas for both men and women. The smoking prevalence ratio for non-urban areas compared with that of urban areas was above 1 for men at most time points, except in the older age groups. In addition, the prevalence ratio between the areas decreased, particularly as age increased. For women, the smoking prevalence ratio in non-urban areas compared to urban areas was below 1 until cohorts born in the 1970s, but the trend reversed thereafter.
CONCLUSIONS
The results of this study suggest that further smoking control and cessation measures are necessary, particularly for older cohorts in urban women and for younger ages in non-urban men.
Summary

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Factors associated with indoor smoking at home by adults across Korea: a focus on socioeconomic status
Bomgyeol Kim, Yejin Lee, Young Dae Kwon, Tae Hyun Kim, Jin Won Noh
Epidemiol Health. 2020;42:e2020067.   Published online October 28, 2020
DOI: https://doi.org/10.4178/epih.e2020067
  • 20,611 View
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Secondhand smoke is an issue that cannot be ignored due to its various negative effects. Especially, secondhand smoke inside the household is an area where health policy must pay attention as it can affect all age groups. This study aims to identify the factors associated with smoking inside the household focusing on socioeconomic status in Korea.
METHODS
We used data from the Community Health Survey of 2017 and a total of 33,462 participated in the study. Data were analyzed through IBM SPSS version 25.0 to conduct binary logistic regression analysis.
RESULTS
Results indicated that indoor smoking had a significant association with socioeconomic status. This association was more marked in those participants who had low household income or those with elementary school education level or less. Furthermore, the study indicates that when the smoker is a woman, older, has higher stress, and is a heavier smoker, the probability of her smoking inside the house is higher.
CONCLUSIONS
Based on the results, it is meaningful that this study has found the factors of smoking inside household. The result identify the factors associated with indoor smoking at home, and it can be used as baseline data for developing new smoking cessation policies.
Summary
Korean summary
이 연구는 가정 실내 흡연과 관련된 다양한 요인들을 파악하였으며, 소득, 교육수준과 같은 사회경제적 요인과 가정 실내 흡연의 연관성을 확인하였다. 이를 통해 가정 실내 흡연 감소를 위한 금연 정책의 근거자료로 활용될 수 있을 것으로 기대된다.

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    Satomi Odani, Takahiro Tabuchi
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Relationship between smoking status and muscle strength in the United States older adults
R. Constance Wiener, Patricia A. Findley, Chan Shen, Nilanjana Dwibedi, Usha Sambamoorthi
Epidemiol Health. 2020;42:e2020055.   Published online July 28, 2020
DOI: https://doi.org/10.4178/epih.e2020055
  • 23,487 View
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  • 6 Web of Science
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AbstractAbstract PDF
Abstract
OBJECTIVES
Muscle strength in older adults is associated with greater physical ability. Identifying interventions to maintain muscle strength can therefore improve quality of life. The purpose of this study was to evaluate whether current or former smoking status is associated with a decrease in muscle strength in older adults.
METHODS
Data from the Health and Retirement Study from 2012-2014 were analyzed with regard to maximum dominant hand grip strength, maximum overall hand grip strength, and smoking status (current, former, or never). Unadjusted linear regression was conducted. Other factors known to be related to strength were included in the adjusted linear regression analyses.
RESULTS
For maximum grip strength, the regression coefficient was 4.91 for current smoking (standard error [SE], 0.58; p<0.001), 3.58 for former smoking (SE, 0.43; p<0.001), and 28.12 for never smoking (SE, 0.34). Fully adjusted linear regression on the relationship between dominant hand grip strength and smoking did not yield a significant result. The factors significantly associated with dominant hand grip strength were male sex, younger age, a race/ethnicity of non-Hispanic White or non-Hispanic Black, higher income, morbidity of ≤1 condition, no pain, and moderate or vigorous exercise more than once a week.
CONCLUSIONS
Muscle strength in older adults was not associated with smoking status in the adjusted analysis.
Summary

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    Bin Han, Ziqian Zeng, Ying Wen, Chu Chen, Daomei Cheng, Yachao Li, Ning Huang, Jia Ruan, Dan Zhao, Qingping Xue
    Archives of Public Health.2025;[Epub]     CrossRef
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    Keunjoong Yoo, Yong Soon Park, Hye Jin Kim, Jeong Hyeon Kim
    Tobacco Induced Diseases.2024; 22(August): 1.     CrossRef
  • Association between smoking status and handgrip strength in Korean male adults: based on Korea National Health and Nutrition Examination Survey 2016–2019
    Eunbyul Cho, Hi Sun Soh, Jae-Ryun Lee, Jieun Yun, Woo Kyung Bae, Hyejin Lee
    Frontiers in Medicine.2023;[Epub]     CrossRef
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    Pascual García-Alfaro, Sandra García, Ignacio Rodríguez, Faustino R. Pérez-López
    Menopause.2022; 29(1): 16.     CrossRef
  • Lower body muscle strength, dynapenic obesity and risk of type 2 diabetes –longitudinal results on the chair-stand test from the Survey of Health, Ageing and Retirement in Europe (SHARE)
    Bernd Kowall
    BMC Geriatrics.2022;[Epub]     CrossRef
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    Nan-Soo Kim, Young-Su Park
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Impact of simulated cigarette excise tax increase on its consumption in Iran
Behzad Raei, Sara Emamgholipour, Amirhossein Takian, Mehdi Yaseri, Ghahreman Abdoli
Epidemiol Health. 2020;42:e2020054.   Published online July 23, 2020
DOI: https://doi.org/10.4178/epih.e2020054
  • 21,320 View
  • 191 Download
  • 2 Web of Science
  • 1 Crossref
AbstractAbstract PDF
Abstract
OBJECTIVES
To assess the impact of a simulated tax-induced cigarette price increase on its consumption by different expenditure clusters in Iran.
METHODS
Employing consecutive cross sections for cigarette consumption, a two-part model was applied for different expenditure groups.
RESULTS
A 75% price increase in cigarettes noticeably— as is common in some countries with strong tobacco control policies—reduces current consumption in all five social classes, causing nearly 8% of current male smokers to quit or not to start.
CONCLUSIONS
Findings of the current study suggest that Iranian policy makers go through to implement tobacco taxation policies to control smoking prevalence, which in turn might lead to a reduction in national healthcare expenditures as well as enhance the global community’s capacity to meet Sustainable Development Goals.
Summary

Citations

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  • The effect of price on cigarette consumption, distribution, and sale in Tehran: a qualitative study
    Younes Panahi Golestan, Mohammad Ebrahimi Kalan, Ziyad Ben Taleb, Kenneth D. Ward, Mehdi Fazlzadeh, Raed Bahelah, Mohammad Reza Masjedi, Abdurrahman Charkazi, Nasir Dehghan, Shirin Shahbazi Sighaldeh
    BMC Public Health.2021;[Epub]     CrossRef
Impact of secondhand smoke exposure in former smokers on their subsequent risk of coronary heart disease: evidence from the population-based cohort of the Tehran Lipid and Glucose Study
Masoumeh Sadeghi, Maryam S. Daneshpour, Soheila Khodakarim, Amir Abbas Momenan, Mahdi Akbarzadeh, Hamid Soori
Epidemiol Health. 2020;42:e2020009.   Published online March 8, 2020
DOI: https://doi.org/10.4178/epih.e2020009
  • 27,283 View
  • 166 Download
  • 10 Web of Science
  • 11 Crossref
AbstractAbstract PDF
Abstract
OBJECTIVES
Cigarette smoking is an established, strong, and modifiable risk factor for coronary heart disease (CHD). However, little research has investigated CHD risk in former smokers who continue to be exposed to others’ cigarette smoke (former & secondhand smokers).
METHODS
In the Tehran Lipid and Glucose Study, a prospective population-based cohort (n=20,069) was followed up for a median period of 14.6 years. A subset of 8,050 participants of 30 years of age and older was analyzed, with first CHD events as the study outcome. Participants were categorized as never, former, current, secondhand, and former & secondhand smokers. Data on smoking intensity (cigarette/d) were also collected. A Cox proportional hazards regression model was applied to estimate the risk of CHD, taking into account the main potential confounders.
RESULTS
The mean age of participants was 46.10 ±11.38 years, and they experienced 1,118 first CHD events (with most CHD cases in former smokers) during the follow-up period. The risk of CHD was highest in current smokers, followed in order by former & secondhand, former, and secondhand smokers (hazard ratio [HR], 1.99; 95% confidence interval [CI], 1.65 to 2.39; HR, 1.55; 95% CI, 1.15 to 2.08; HR, 1.39; 95% CI, 1.12 to 1.72; HR, 1.27; 95% CI, 1.07 to 1.51, respectively), compared to never smokers. The risk of CHD increased with smoking intensity, which has been proposed as a preferable measure of smoking, indicating a dose-response pattern.
CONCLUSIONS
The elevated risk of CHD in former & secondhand smokers was a noteworthy finding, with possible implications for health policy; however, further research is needed.
Summary

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  • Inverse association between serum Klotho levels and rheumatoid arthritis risk: Insights from the NHANES database
    Qianqian Xu, Jianpeng Yu, Jiaqi Hu, Xia Xu, Lanling Zhang, Qian Chen, Jie Gao
    Rheumatology & Autoimmunity.2025; 5(1): 64.     CrossRef
  • Association between secondhand smoke exposure and incidence of metabolic syndrome: analyses of Korean Genome and Epidemiology Study (KoGES) data
    Seungmi Choi, Sanghyuk Bae
    Epidemiology and Health.2025; 47: e2025041.     CrossRef
  • Health effects associated with exposure to secondhand smoke: a Burden of Proof study
    Luisa S. Flor, Jason A. Anderson, Noah Ahmad, Aleksandr Aravkin, Sinclair Carr, Xiaochen Dai, Gabriela F. Gil, Simon I. Hay, Matthew J. Malloy, Susan A. McLaughlin, Erin C. Mullany, Christopher J. L. Murray, Erin M. O’Connell, Chukwuma Okereke, Reed J. D.
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  • Association of secondhand smoke exposure with all-cause mortality and cardiovascular death in patients with hypertension: Insights from NHANES
    Dikang Pan, Julong Guo, Sensen Wu, Hui Wang, Jingyu Wang, Cong Wang, Yongquan Gu
    Nutrition, Metabolism and Cardiovascular Diseases.2024;[Epub]     CrossRef
  • Advancements in Cardiovascular Disease Research Affected by Smoking
    Miaoxin Fu, Aihua Mei, Xinwen Min, Handong Yang, Wenwen Wu, Jixin Zhong, Chunlei Li, Jun Chen
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    International Journal of Environmental Research and Public Health.2023; 20(4): 3084.     CrossRef
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    Hui Yang, Ya-Mei Luo, Cai-Yi Ma, Tian-Yu Zhang, Tao Zhou, Xiao-Lei Ren, Xiao-Lin He, Ke-Jun Deng, Dan Yan, Hua Tang, Hao Lin
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    Jiangwei Qiu, Zhenqi Chang, Kai Wang, Kexin Chen, Qingan Wang, Jiaxing Zhang, Juan Li, Chan Yang, Yi Zhao, Yuhong Zhang
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    Mulugeta Molla Birhanu, Sojib Bin Zaman, Amanda G. Thrift, Roger G. Evans, Ayse Zengin
    Preventive Medicine.2022; 158: 107036.     CrossRef
  • Burden of current and past smoking across 28 European countries in 2017: A cross-sectional analysis
    Ayaka Teshima, Anthony Laverty, Filippos Filippidis
    Tobacco Induced Diseases.2022; 20(June): 1.     CrossRef
  • Role of Air Pollution and rs10830963 Polymorphism on the Incidence of Type 2 Diabetes: Tehran Cardiometabolic Genetic Study
    Fatemeh Jabbari, Anoushiravan Mohseni Bandpei, Maryam S. Daneshpour, Abbas Shahsavani, Seyed Saeed Hashemi Nazari, Hassanali Faraji Sabokbar, Amir abbas Momenan, Fereidoun Azizi
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Associations between socioeconomic status and blood cadmium levels in Korea
Yongho Jee, Sung-il Cho
Epidemiol Health. 2019;41:e2019018.   Published online May 15, 2019
DOI: https://doi.org/10.4178/epih.e2019018
  • 21,664 View
  • 256 Download
  • 7 Web of Science
  • 8 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Although smoking is associated with both low socioeconomic status and blood cadmium (Cd) levels, the association between socioeconomic status and Cd levels remains unclear. Therefore, our study aimed to examine this association and to clarify whether smoking is a confounding or mediating variable in this relationship.
METHODS
Data (n=7,734) were drawn from the Korea National Health and Nutrition Examination Survey (KNHANES, 2008- 2011), including years that contained data on blood Cd and urinary cotinine levels. We investigated the associations of income, education, and occupation with blood Cd levels. Smoking was investigated by categorizing participants by smoking status (never, former, and current) and pack-years into quartiles. The weekly frequency of rice and barley intake was analyzed to gain insights into participants’ dietary patterns. Additionally, urinary cotinine levels were used to ensure the validity of the smoking variables.
RESULTS
Participants earning a low income and with less formal education had higher blood Cd levels. After controlling for smoking, the association between income and Cd levels substantially weakened. Further controlling for education, the association between income and Cd levels disappeared. However, there was a strong negative association between education and Cd levels, even after controlling for smoking history, pack-years, and urinary cotinine levels.
CONCLUSIONS
In cross-sectional data from the KNHANES, blood Cd levels were significantly higher among those with a low income and less formal education. Smoking history contributed to, but did not fully explain, these associations.
Summary
Korean summary
흡연은 낮은 사회경제적 상태와, 높은 혈중 카드뮴 상태 등과 관련이 있다고 보고가 되어 왔지만, 사회경제적 상태와 혈중 카드뮴 상태의 연관성은 불분명하다. 따라서, 본 연구는 혈중 카드뮴 농도와 사회경제적 상태와의 관련성을 분석하고, 흡연이라는 변수가 이 관련성에 어떠한 영향을 주는지 보고자 하였다.

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    Yuwei Zhang, Qiuyun Gu, Yixi Li, Jiayi Li, Yaxin Han, Longfei Feng, Xutong Qin, Jiming Zhang, Zhijun Zhou, Xiuli Chang
    Journal of Hazardous Materials.2025; 495: 138972.     CrossRef
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    Oh Beom Kwon, Eun Ju Lee, Myoung-Nam Lim, Jeeyoung Kim, Woo Jin Kim
    Tuberculosis and Respiratory Diseases.2025; 88(4): 696.     CrossRef
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    Journal of Environmental Health Sciences.2025; 51(6): 442.     CrossRef
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    Jiajia Li, Zengwu Wang, Shiqi Lin, Lijun Pei, Linfeng Zhang, Xin Wang, Zuo Chen, Congyi Zheng, Yuting Kang, Lu Chen, Haoqi Zhou, Runlin Gao
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    Mohammad H. Rahbar, Maureen Samms-Vaughan, Yuansong Zhao, Sepideh Saroukhani, Jan Bressler, Manouchehr Hessabi, Megan L. Grove, Sydonnie Shakespeare-Pellington, Katherine A. Loveland
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Substance abuse behaviors among university freshmen in Iran: a latent class analysis
Kourosh Kabir, Ali Bahari, Mohammad Hajizadeh, Hamid Allahverdipour, Mohammad Javad Tarrahi, Ali Fakhari, Hossein Ansari, Asghar Mohammadpoorasl
Epidemiol Health. 2018;40:e2018030.   Published online July 2, 2018
DOI: https://doi.org/10.4178/epih.e2018030
  • 23,151 View
  • 215 Download
  • 8 Web of Science
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AbstractAbstract PDF
Abstract
OBJECTIVES
Substance abuse behaviors among university freshmen in Iran are poorly understood. This study aimed to identify, for the first time, subgroups of university freshmen in Iran on the basis of substance abuse behaviors. Moreover, it examined the effects of socio-demographic characteristics on membership in each specific subgroup.
METHODS
Data for the study were collected cross-sectionally in December 2013 and January 2014 from 4 major cities in Iran: Tabriz, Qazvin, Karaj, and Khoramabad. A total of 5,252 first-semester freshmen were randomly selected using a proportional cluster sampling methodology. A survey questionnaire was used to collect data. Latent class analysis (LCA) was performed to identify subgroups of students on the basis of substance abuse behaviors and to examine the effects of students’ socio-demographic characteristics on membership in each specific subgroup.
RESULTS
The LCA procedure identified 3 latent classes: the healthy group; the hookah experimenter group; and the unhealthy group. Approximately 82.8, 16.1, and 2.1% of students were classified into the healthy, hookah experimenter, and unhealthy groups, respectively. Older age, being male, and having a family member or a close friend who smoked increased the risk of membership in classes 2 and 3, compared to class 1.
CONCLUSIONS
Approximately 2.1% of freshmen exhibited unhealthy substance abuse behaviors. In addition, we found that older age, being male, and having a close friend or family member who smoked may serve as risk factors for substance abuse behaviors.
Summary

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    Regina Alves
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    Neda Soleimanvandiazar, Salah Eddin Karimi, Mahboobeh Kamali, Marziyeh Moradi, Leila Janani, Saeed Ghanbari, Azadeh Mottaghi, Mojtaba Piri, Leila Ghalichi, Marzieh Nojomi
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    Amrita Gill, Erica Felker-Kantor, Colette Cunningham-Myrie, Lisa-Gaye Greene, Parris Lyew-Ayee, Uki Atkinson, Wendel Abel, Simon G. Anderson, Katherine P. Theall
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    Journal of Nursing and Midwifery Sciences.2023;[Epub]     CrossRef
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Cohort Profile
The Mysuru stUdies of Determinants of Health in Rural Adults (MUDHRA), India
Padukudru Anand Mahesh, Komarla Sundararaja Lokesh, Purnima Madhivanan, Sindaghatta Krishnarao Chaya, Biligere Siddaiah Jayaraj, Koustav Ganguly, Murali Krishna
Epidemiol Health. 2018;40:e2018027.   Published online June 23, 2018
DOI: https://doi.org/10.4178/epih.e2018027
  • 25,339 View
  • 229 Download
  • 15 Web of Science
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AbstractAbstract PDF
Abstract
Between 2006 and 2010, in 16 randomly selected villages in rural areas of Mysore district, in south India, 8,457 subjects aged 30 and above were screened for symptoms of chronic respiratory disease. Of the 8,457 subjects, 1,692 were randomly invited for further evaluation of lung function and chronic obstructive pulmonary disease (COPD) by spirometry, and 1,085 of these subjects underwent lung function assessments for prevalent COPD and its risk factors. These 1,085 subjects, who were then aged between 35 and 80 years, constituted the Mysuru stUdies of Determinants of Health in Rural Adults (MUDHRA) cohort. Among other findings, threshold of biomass fuel smoke exposure suitable for use as a dichotomous risk factor for the diagnosis of chronic bronchitis was established, with a minimum biomass smoke exposure index of 60 found to be significantly associated with an elevated risk of developing chronic bronchitis. Five years later (between 2014 and 2016), 869 of the 1,085 participants were followed up with repeat lung function assessments for incident COPD and all-cause mortality. A subset of these participants (n=200) underwent blood tests for vitamin D levels, antioxidant activity, an assessment for anxiety and depression, and another subset (n=98) underwent a bioplex assay for 40 serum cytokines.
Summary

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    Bellipady Shyam Prasad Shetty, Sindaghatta Krishnarao Chaya, Sravan Kumar V, Maheswarappa Mahendra, Biligere Siddaiah Jayaraj, Komarla Sundararaja Lokesh, Koustav Ganguly, Padukudru Anand Mahesh
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Original Articles
Relationship between happiness and tobacco smoking among high school students
Maryam Ataeiasl, Parvin Sarbakhsh, Hossein Dadashzadeh, Christoph Augner, Masoumeh Anbarlouei, Asghar Mohammadpoorasl
Epidemiol Health. 2018;40:e2018009.   Published online March 24, 2018
DOI: https://doi.org/10.4178/epih.e2018009
  • 24,538 View
  • 315 Download
  • 18 Web of Science
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AbstractAbstract PDF
Abstract
OBJECTIVES
Recent research has described negative relationship between happiness and habitual smoking among adolescents. No study of this relationship has been conducted among Iranian adolescents. The aim of the present study was to characterize the relationship between happiness and cigarette or hookah smoking among a sample of high school students.
METHODS
A sample of 1,161 10th-grade students in Tabriz (northwest Iran) was selected by multi-stage proportional cluster sampling. Participants completed a self-administered multiple-choice questionnaire including information on cigarette smoking, hookah smoking, happiness score, substance abuse, self-injury, general risk-taking behavior, attitudes towards smoking, socioeconomic information, and demographic characteristics. An ordinal logistic regression model was used for data analysis.
RESULTS
It was found that 5.9 and 5.0% of students were regular cigarette smokers and regular hookah smokers, respectively. After controlling for potential confounders, higher happiness scores were found to protect students against more advanced stages of cigarette smoking (odds ratio [OR], 0.98; 95% confidence interval [CI], 0.97 to 0.99; p=0.013). However, no significant relationship was found between happiness scores and hookah smoking status (OR, 1.01; 95% CI, 0.97 to 1.02; p=0.523).
CONCLUSIONS
Happiness scores were associated with less advanced stages of habitual cigarette smoking among high school students. Our findings underscore the necessity of conducting longitudinal or interventional studies aiming to determine the effects of enhancing happiness on preventing the transition through the stages of cigarette and hookah smoking.
Summary

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The effects of water-pipe smoking on birth weight: a population-based prospective cohort study in southern Iran
Shahrzad Nematollahi, Mohammad Ali Mansournia, Abbas Rahimi Foroushani, Mahmood Mahmoodi, Azin Alavi, Mohammad Shekari, Kourosh Holakouie-Naieni
Epidemiol Health. 2018;40:e2018008.   Published online March 13, 2018
DOI: https://doi.org/10.4178/epih.e2018008
  • 22,796 View
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  • 21 Web of Science
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AbstractAbstract PDF
Abstract
OBJECTIVES
Consecutive community health assessments revealed that water-pipe smoking in women and impaired growth in children were among the main health concerns in suburban communities in southern Iran. The aim of the present study was to identify the effects of water-pipe smoking during pregnancy on birth weight.
METHODS
Data from a population-based prospective cohort study of 714 singleton live pregnancies in the suburbs of Bandar Abbas in southern Iran in 2016-2018 were used in this study. Data about water-pipe smoking patterns and birth weight were collected by questionnaires during and after the pregnancy. Low birth weight (LBW) was defined as a birth weight below 2,500 g. Statistical analyses were performed using generalized linear models, and the results were presented in terms of relative risk (RR) and 95% confidence intervals (CI).
RESULTS
Fifty (8.2%) of the study subjects smoked water-pipe. The adjusted risk of LBW increased 2-fold in water-pipe smokers (adjusted RR [aRR], 2.09; 95% CI, 1.18 to 3.71), and by 2.0% for each 1-year increase in the duration of water-pipe smoking (aRR, 1.02; 95% CI, 0.99 to 1.05).
CONCLUSIONS
Our results showed that water-pipe smoking during pregnancy was an important risk factor for LBW in this population sample from southern Iran. The introduction of regulations onto prevent water-pipe smoking and the implementation of community health action plans aiming at empowering women and increasing women’s knowledge and awareness regarding the health consequences of water-pipe smoking are proposed.
Summary

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    V. Peyronnet, A.-L. Le Faou, I. Berlin
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The association between smoking or passive smoking and cardiovascular diseases using a Bayesian hierarchical model: based on the 2008-2013 Korea Community Health Survey
Whanhee Lee, Sung-Hee Hwang, Hayoung Choi, Ho Kim
Epidemiol Health. 2017;39:e2017026.   Published online June 22, 2017
DOI: https://doi.org/10.4178/epih.e2017026
  • 30,085 View
  • 428 Download
  • 32 Web of Science
  • 56 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Smoking and passive smoking have been extensively reported as risk factors of cardiovascular morbidity and mortality. Despite the biological mechanisms underlying the impact of hazardous chemical substances contained in tobacco in cardiovascular diseases (CVD), studies investigating the association between smoking and passive smoking with morbidity are at an inchoate stage in Korea. Therefore, this study aimed to estimate the risks of smoking and passive smoking on cardiovascular morbidity at the national and regional levels.
METHODS
This study calculated sex-standardized and age-standardized prevalence of CVD and smoking indices in 253 community health centers (si/gun/gu) in Korea using the 2008-2013 Korea Community Health Survey data. Furthermore, a Bayesian hierarchical model was used to estimate the association of smoking and passive smoking with the prevalence of CVD from the national and regional community health centers.
RESULTS
At the national level, smoking was significantly associated with stroke (relative risk [RR], 1.060) and hypertension (RR, 1.016) prevalence, whilst passive smoking at home and work were also significantly associated with prevalence of stroke (RR, 1.037/1.013), angina (RR, 1.016/1.006), and hypertension (RR, 1.010/1.004). Furthermore, the effects of smoking and passive smoking were greater in urban-industrial areas than in rural areas.
CONCLUSIONS
The findings of this study would provide grounds for national policies that limit smoking and passive smoking, as well as regionally serve as the basis for region-specific healthcare policies in populations with high CVD vulnerability.
Summary
Korean summary
베이지안 계층화 방법을 이용하여 흡연 및 간접 흡연과 심혈관계 질환 유병의 전국 및 시/군/구별 연관성을 추정한 결과, 흡연은 뇌졸중 (RR=1.060) 과 고혈압 (RR=1.016) 유병에 유의하게 연관되었다.

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Perspective
The effect of smoking on lung cancer: ethnic differences and the smoking paradox
Keum Ji Jung, Christina Jeon, Sun Ha Jee
Epidemiol Health. 2016;38:e2016060.   Published online December 20, 2016
DOI: https://doi.org/10.4178/epih.e2016060
  • 48,187 View
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  • 53 Web of Science
  • 43 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
The objectives of this review were to determine whether the smoking paradox still exists and to summarize possible explanations for the smoking paradox. Based on published data, we compared the risk of cigarette smoking for lung cancer in Western and Asian countries. We extracted data from the relevant studies about annual tobacco consumption, lung cancer mortality rates according to smoking status from each country, and possible explanations for the smoking paradox. A significantly greater risk of lung cancer death was found among current smokers in Asian countries than among nonsmokers, with relative risks (RRs) of 4.0 to 4.6 for Koreans, 3.7 to 5.1 for Japanese, and 2.4 to 6.5 for Chinese. Although a significantly greater risk of lung cancer was present among current smokers in Asian countries, the RRs in Asian countries were much lower than those reported in Western countries (range, 9.4 to 23.2). Possible explanations for the smoking paradox included epidemiologic characteristics, such as the smoking amount, age at smoking initiation, and the use of filtered or mild tobacco. The smoking paradox definitely exists, but may be explained by major epidemiologic characteristics. Therefore, the smoking paradox should not be interpreted as indicating that tobacco is safer or less harmful for Asians.
Summary
Korean summary
흡연이 폐암에 미치는 관련성의 인종 차이 흡연은 폐암의 가장 큰 원인으로 알려져 있다. 그러나 흡연이 폐암에 미치는 관련성의 크기는 영국, 미국 등 서양에서 발표된 연구결과에서 10-20배 정도로 보고되고 있으나 한국, 일본, 중국 등 동양에서 발표된 연구에서 3-5배 정도로 낮게 보고되고 있다. 이러한 차이는 흡연유행, 담배성분, 흡연자 특성, 그리고 유전적인 차이로 일부 설명되고 있으나 아직 완전히 이해되어진 상태는 아니다. 이는 공중보건학적으로 매우 중요한 의미를 가지므로 동서양의 직접적인 비교연구가 필요할 것으로 생각된다.

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Original Articles
Associations of smoking with overall obesity, and central obesity: a cross-sectional study from the Korea National Health and Nutrition Examination Survey (2010-2013)
Yeonjung Kim, Seong Min Jeong, Bora Yoo, Bitna Oh, Hee-Cheol Kang
Epidemiol Health. 2016;38:e2016020.   Published online May 19, 2016
DOI: https://doi.org/10.4178/epih.e2016020
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  • 32 Web of Science
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AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
The association between smoking and obesity is a significant public health concern. Both are preventable risk factors of cardiovascular disease and a range of other conditions. However, despite numerous previous studies, no consensus has emerged regarding the effect of smoking on obesity. We therefore carried out a novel study evaluating the relationship between smoking and obesity.
METHODS
A total of 5,254 subjects aged 19 years or older drawn from the 2010-2013 Korea National Health and Nutrition Examination Survey were included in this cross-sectional study. Smoking was examined both in terms of smoking status and the quantity of cigarettes smoked by current smokers. Multiple logistic regression analysis was used to assess the association between smoking and obesity. Overall obesity was defined as a body mass index (BMI) ≥25 kg/m2, and central obesity was defined as a waist circumference ≥90 cm for males and ≥85 cm for females. We adjusted for the possible confounding effects of age, sex, physical activity, alcohol consumption, and the presence of hypertension or diabetes.
RESULTS
A statistically significant difference in central obesity according to smoking status was identified. Current smokers were more likely to be centrally obese than never-smokers (adjusted odds ratio,1.30; 95% confidence interval, 1.02 to 1.67). However, no significant association was found between smoking and obesity defined by BMI. Moreover, among current smokers, no statistically significant association was found between the daily amount of smoking and obesity or central obesity.
CONCLUSIONS
Smoking was positively associated with central obesity. Current smokers should be acquainted that they may be more prone to central obesity.
Summary
Korean summary
이 연구는 국민건강영양조사(2010-2013) 자료를 이용하여 한국 성인에서 흡연과 비만의 연관성을 분석하였다. 현재 흡연자는 비흡연자와 비교하여 비만의 위험도는 유의한 차이를 보이지 않았지만 복부비만의 위험도는 유의하게 증가하였다. 흡연이 복부 비만의 위험증가와 연관성이 있음을 확인하였으며 향후 인과관계 및 기전 규명을 위한 연구가 필요할 것으로 생각된다.

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Age-period-cohort analysis of smoking prevalence among young adults in Korea
Yong Ho Jee, Sung-il Cho
Epidemiol Health. 2016;38:e2016010.   Published online March 19, 2016
DOI: https://doi.org/10.4178/epih.e2016010
Correction in: Epidemiol Health 2016;38(0):e2016029
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AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Smoking prevalence among Korean men in their thirties is substantially high (approximately 50%). An in-depth analysis of smoking trends among young adults in their twenties is necessary to devise antismoking policies for the next 10 years. This study aimed to identify the contributions of age, period, and birth cohort effects on smoking prevalence in young adults.
METHODS
Subjects comprised 181,136 adults (83,947 men: 46.3%; 97,189 women: 53.7%) aged 19 to 30 years from the 2008-2013 Korea Community Health Survey. Smoking prevalence adjusted with reference to the 2008 population was applied to the age-period-cohort (APC) model to identify the independent effects of each factor.
RESULTS
For men, smoking prevalence rapidly escalated among subjects aged 19 to 22 years and slowed down among those aged 23 to 30 years, declined during 2008 to 2010 but stabilized during 2011 to 2013, and declined in birth cohorts prior to 1988 but stabilized in subjects born after 1988. However, in APC models, smoking prevalence increased with age in the 1988 to 1991 birth cohort. In this birth cohort, smoking prevalence at age 19 to 20 years was approximately 24% but increased to 40% when the subjects turned 23 to 24 years. For women, smoking prevalence was too low to generate consistent results.
CONCLUSIONS
Over the past six years and in recent birth cohorts, smoking prevalence in adults aged 19 to 30 years has declined and is stable. Smoking prevalence should be more closely followed as it remains susceptible to an increase depending on antismoking policies or social conditions.
Summary
Korean summary
우리나라 남자의 30대와 40대의 흡연율은 약 50% 수준으로 매우 높다. 앞으로 10년 뒤에 이들 연령대로 진입하는 20대와 30대 젊은 청년층의 흡연율의 추이를 심층 분석하는 것은 10년 뒤 금연정책 준비에 필요한 기초자료가 될 것이다. 이 연구의 목적은 젊은 청년의 흡연율의 변화추이에 영향을 주는 연령, 연도, 출생코호트 효과를 파악하고자 하였다. 지난 6년 동안 19-30세의 흡연율은 전체적으로 연도가 증가하고 최근 출생코호트로 올수록 감소하는 경향을 보였다. 그러나 최근 출생코호트의 흡연율은 앞으로 금연정책이나 사회적인 상황에 따라 여전히 증가할 여지가 있으므로 주의 깊은 관찰이 필요할 것으로 생각된다.

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Methods
The causality between smoking and lung cancer among groups and individuals: addressing issues in tobacco litigation in South Korea
Young-Ho Khang
Epidemiol Health. 2015;37:e2015026.   Published online May 31, 2015
DOI: https://doi.org/10.4178/epih/e2015026
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
This article discusses issues on the causality between smoking and lung cancer, which have been raised during the tobacco litigation in South Korea. It should be recognized that the explanatory ability of risk factor(s) for inter-individual variations in disease occurrence is different from the causal contribution of the risk factor(s) to disease occurrence. The affected subjects of the tobacco litigation in South Korea are lung cancer patients with a history of cigarette smoking. Thus, the attributable fraction of the exposed rather than the population attributable fraction should be used in the tobacco litigation regarding the causal contribution of smoking to lung cancer. Scientific evidence for the causal relationship between smoking and lung cancer is based on studies of individuals and groups, studies in animals and humans, studies that are observational or experimental, studies in laboratories and communities, and studies in both underdeveloped and developed countries. The scientific evidence collected is applicable to both groups and individuals. The probability of causation, which is calculated based on the attributable fraction for the association between smoking and lung cancer, could be utilized as evidence to prove causality in individuals.
Summary
Korean summary
이 글에서는 우리나라 담배소송 과정에서 제기된 흡연과 폐암의 인과성에 대하여 논하였다. 질병 발생의 개인 간 변이에 대한 위험 요인의 설명력과 질병발생에 미치는 위험요인의 인과적 기여도는 다르다는 점을 지적하였다. 개인에서의 흡연과 폐암의 인과성에 대한 정보로 인과확률이 활용될 수 있음을 강조하였다.

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    Jan Dul
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    Jun-Pyo Myong, Hyeongsu Kim, Kunsei Lee, Soung Hoon Chang
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Editorial
Epidemiological evidence in law: a comment on Supreme Court Decision 2011Da22092, South Korea
Alex Broadbent
Epidemiol Health. 2015;37:e2015025.   Published online May 31, 2015
DOI: https://doi.org/10.4178/epih/e2015025
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AbstractAbstract PDF
Abstract
This paper offers a commentary on three aspects of the Supreme Court’s recent decision (2011Da22092). First, contrary to the Court’s finding, this paper argues that epidemiological evidence can be used to estimate the probability that a given risk factor caused a disease in an individual plaintiff. Second, the distinction between specific and non-specific diseases, upon which the Court relies, is shown to be without scientific basis. Third, this commentary points out that the Court’s finding concerning defect of expression effectively enables tobacco companies to profit from the efforts of epidemiologists and others involved in public health to raise awareness of the dangers of smoking.
Summary

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Original Article
The effect of community-level smoke-free ordinances on smoking rates in men based on Community Health Surveys
Hye Ah Lee, Hyesook Park, Ho Kim, Kyunghee Jung-Choi
Epidemiol Health. 2014;36:e2014037.   Published online December 26, 2014
DOI: https://doi.org/10.4178/epih/e2014037
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
As one of smoke-free policies, communities have established the smoke-free ordinances since August 2010. Thus, this study aimed to evaluate the effects of community-level smoke-free ordinances (SFO) on smoking rates in men using multiyear Community Health Survey (CHS) data.
METHODS
Data on community-level SFO were collected from a website on Enhanced Local Laws and Regulation Information System. Regional smoking-related data were obtained from CHS data from 2008 to 2012 and the age-standardized rates of current smoking in men, attempts to quit smoking, and smoke-free campaign experiences including the mean number of cigarettes smoked (smoking amount) were calculated. Repeated measures analysis of variance was performed to evaluate the effects of regional implementation of SFO and the duration on change of smoking rates.
RESULTS
Overall current smoking rates and daily mean cigarettes smoked were lower in community where SFO had been implemented compared to those without implementation, and there was a significant difference in smoking rates between 2010 and 2008. Cross-sectional analysis of the effects of regional SFO revealed clear difference in rate of current smoking, but longitudinal analysis showed no significant differences. Stratifying by age groups, however, showed that groups less than 30 years of age had low smoking rates in community with ordinance compared to those without SFO since 2010. Yearly surveys measuring the number of cigarettes smoked, attempts to quit smoking, and experiences of smoke-free campaigns showed regional differences in the duration of implementation, but these differences were not significant in longitudinal analysis. Furthermore, there was a difference in regional socioeconomic characteristics between community with and without SFO implementation.
CONCLUSIONS
For effective smoking control, it is necessary to evaluate current policies and develop indices to evaluate the practical implementation of ordinances. As more communities to pass the SFO, long-term observation and assessments required.
Summary
Korean summary
2008년부터 2012년까지 조사된 지역사회건강조사 자료를 이용하여, 지역별 금연 조례 시행에 대한 효과를 평가한 연구 결과로, 종단적 분석을 통해 접근하였을 때 시간에 따른 흡연율 감소 폭은 조례 시행/미시행 지역간에 차이를 보이지 않았으며, 지역의 사회경제적 특성 요인에 차이가 존재하는 것으로 나타났다. 효과적인 흡연 규제를 위해, 현 시행중인 정책에 대한 효과 평가 및 장기적인 평가가 필요하다.

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Health Statistics
Trends in cigarette smoking among adolescents and adults in South Korea
Sunhye Choi, Yoonjung Kim, Suyeon Park, Jihye Lee, Kyungwon Oh
Epidemiol Health. 2014;36:e2014023.   Published online October 28, 2014
DOI: https://doi.org/10.4178/epih/e2014023
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
This report is to examine changes in the smoking prevalence among adults and adolescents and provide basic data for national health policies. Korea National Health and Nutrition Examination Survey from 1998 to 2013 and Korea Youth Risk Behavior Web-based Survey from 2005 to 2013 were used to estimate national adults and adolescents smoking prevalence. In 2013, current cigarette smoking prevalence among male adults and female adults was 42.1% and 6.2%, decreasing by 1.6% points and 1.7% points, respectively compared to 2012. Among adolescents, current cigarette smoking prevalence was 14.4% for male and 4.6% for female students, decreasing by 1.9%points and 1.3%points, respectively compared to 2012. The highest current cigarette smoking prevalence was observed among adults of lower household income or lower education level and among middle and high school students of lower perceived household economic status or lower perceived academic records. Current cigarette smoking prevalence among male adults has decreased since 2011, whereas among female adults, there were no statistically significant annual changes. Among middle and high school students, the prevalence for male students decreased since 2011 and for female students decreased since 2006. But the smoking prevalence did not meet the Health Plan 2020 target.
Summary
Korean summary
국민건강영양조사(1998~2013)와 청소년건강행태온라인조사(2005~2013) 원시자료를 이용하여 분석한 결과, 2013년 현재흡연율은 성인의 경우 남자 42.1%, 여자 6.2%, 중고등학생은 남자 14.4%, 여자 4.6%이었다. 사회경제적요인별로는 성인의 경우 소득수준이 낮을수록, 교육수준이 낮을수록 현재흡연율이 높았고, 중고등학생은 주관적 가정의 경제적 상태가 낮을수록, 주관적 학업성적이 낮을수록 흡연율이 높았다.

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Original Articles
The Relationship between Smoking, Socioeconomic Status and Grip Strength among Community-dwelling Elderly Men in Korea: Hallym Aging Study
ShanAi Quan, Jin-Young Jeong, Dong-Hyun Kim
Epidemiol Health. 2013;35:e2013001.   Published online February 18, 2013
DOI: https://doi.org/10.4178/epih/e2013001
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AbstractAbstract PDF
Abstract
<sec><title>OBJECTIVES</title><p>Low grip strength is associated with decline in bone mineral density (BMD) and increased risk of spine fracture among the elderly. Smoking, a major factor determining BMD, is also known to have an indirect effect on bone loss. This study investigated whether smoking is associated with grip strength in the community-dwelling elderly in Korea.</p></sec><sec><title>METHODS</title><p>This study was an outcome of the second of three waves of the Hallym Aging Study from January to May 2007, a population-based study of Koreans aged 45 years and upwards dwelling in Chuncheon. Its 218 subjects comprised men aged 65 years or over. They were evaluated at a general hospital for socioeconomic status, smoking history, and various clinical measures including grip strength.</p></sec><sec><title>RESULTS</title><p>Grip strength was higher in non-, ex-, and current smokers (33.7 kg, 30.6 kg, and 29.3 kg, respectively). Current smoking was found to increase the risk of decreased grip strength (adjusted odds ratio [aOR], 4.58; 95% confidence interval [CI],1.31 to 16.04) compared with non-smoking, after adjustment for potential covariates including socioeconomic status. After adjustment for smoking effect, education of fewer than six years and monthly income of fewer than 500,000 Korean won increased the risk of decreased grip strength compared with education of more than six years (aOR, 2.88; 95% CI, 1.08 to 7.66) and monthly income of more than 1,500,000 Korean won (aOR, 2.86; 95% CI, 1.08 to 7.54).</p></sec><sec><title>CONCLUSIONS</title><p>These results showed that current smoking, low education and low income were independent risk factors for decreased grip strength among elderly men in Korea.</p></sec>
Summary

Citations

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  • Hand grip strength as a proposed new vital sign of health: a narrative review of evidences
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    Keunjoong Yoo, Yong Soon Park, Hye Jin Kim, Jeong Hyeon Kim
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    Yan Zhang, Ziwei Tian, Xuqiu Cheng, Bohao Fang, Qiang Liu, Junzhe Li, Yuan Wang, Hongli Wang, Xianwei Guo, Guimei Chen, Huaibiao Li, Liang Sun, Bing Hu, Dongmei Zhang, Chunmei Liang, Jie Sheng, Fangbiao Tao, Jun Wang, Linsheng Yang
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Association between Metabolic Syndrome and Alcohol drinking and Smoking histories in a rural area of Korea.
Hee Sung Ha, Hyeon Woo Yim, Yong Moon Park, Jin Hee Lee, Seung Hwan Lee, Hyuk Sang Kwon, Kun Ho Yoon, Ho Young Son, Moo Il Kang, Won Chul Lee
Korean J Epidemiol. 2008;30(2):281-293.   Published online December 31, 2008
DOI: https://doi.org/10.4178/kje.2008.30.2.281
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AbstractAbstract PDF
Abstract
PURPOSE
Prevalence of metabolic syndrome is increasing markedly in rural area of Korea. Alcohol drinking and smoking are the main risk factors which shows the highest prevalence rate among the risk factors of metabolic syndrome. The aim of this study was to investigate the association between metabolic syndrome and alcohol drinking and smoking histories in a rural area of Korea.
METHODS
Data was obtained from 1,332(507 men, 825 women) individuals aged over 40 years who lived in rural area of Chungju city in 2007. Metabolic syndrome was defined by NCEP ATP III criteria and waist circumference was defined by WHO-APR(Asia Pacific Region). Data analysis was carried out using SAS version 8.02.
RESULTS
In men, adjusted odds ratio for metabolic syndrome was 2.78(1.09-7.05) for current alcohol drinker, 2.75(1.38-5.51) for past alcohol drinker, 3.25(1.58-6.67) for under 21 years old at start of alcohol drinking, 2.62(1.12-6.11) for light alcohol drinker, 6.01(2.65-13.64) for heavy alcohol drinker. In women, all the alcohol related risk factors were not statistically significant with metabolic syndrome. For all the smoking related risk factors were not statistically significant with metabolic syndrome in men and women. Adjusted odds ratio of alcohol drinking habits for each components of diagnostic criteria of metabolic syndrome was significant for high blood pressure, high fasting glucose and hypertriglyceridemia in men and abdominal obesity in women. Adjusted odds ratio of cigarette smoking habits for each components of diagnostic criteria of metabolic syndrome was significant for abdominal obesity in women.
CONCLUSION
Controlling alcohol drinking habits in men should be reinforced in order to prevent the metabolic syndrome in a rural area of Korea.
Summary
The Role of the Epidemiological Causality of the Association between Smoking and Lung Cancer.
Kyung Hwan Lee, Hyun Hee Kang
Korean J Epidemiol. 2005;27(2):28-37.
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AbstractAbstract PDF
Abstract
It is generally accepted that acknowledgment of the causality of the association between smoking and lung cancer plays a crucial role in imposing liability on tobacco manufacturers in tobacco-related cases. However, acknowledgment of the epidemiological causality of the association is merely a precondition to putting liability on tobacco manufacturers; it does not play a crucial role. Smokers smoke manufactured tobacco by their right to choose according to their self-decision; therefore, it is not reasonable to place all liability concerning lung cancer on tobacco manufacturers. This paper studies the dual structure of the causality of the association between tobacco manufacturing and smoking as well as smoking and lung cancer. It can be understood that tobacco manufacturers must be held liable for lung cancer caused by smoking when there was intentional concealment or insufficient provision of information on the harmfulness of tobacco and the addictiveness of nicotine. The epidemiological causality of the association is the minimum scientific and legal precondition to placing liability on tobacco manufacturers for lung cancer caused by smoking. However, striving for protection and promotion of national health by, for instance, promoting antismoking programs, the epidemiological causality of the association adequately plays a social role when viewed from a public health perspective.
Summary
Smoking and lung cancer: foundation of modern epidemiology.
Hae Kwan Cheong
Korean J Epidemiol. 2005;27(2):1-19.
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  • 52 Download
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Abstract
Since its introduction to western world in 16th century, smoking has been one of the most popular parts of human life. Its health hazards, however, has rarely been evaluated before mid 20th century. After early suggestion of association with lip cancer and pipe smoking, which was falsely associated with the heat of the pipe smoking, association between rapidly increasing incidence of lung cancer and increasing popularity of smoking habit in the western world has been suggested in late 1940s. Initial case-control studies, in spite of its proneness to various biases, aroused the relevance of the relationship. It was supported by following well-designed case-control studies and new method, cohort studies in both coast of the Atlantic. Consistency of the results of epidemiologic studies and additional support from animal experiments made the causal relationship to be accepted from scientific community, and finally from public and governments. Establishment of criteria of causal relationship was also established in the process of investigation of the relationship between smoking and lung cancer. Smoking is most common cause attributable to lung cancers in most of the world. It is also responsible for the many cancers, including larynx, bladder, oral cavity, esophagus, pancreas, kidney, stomach, liver, and myeloid leukemia; and cardiovascular disorders, respiratory disorders, and other degenerative disorders. Passive (or environmental tobacco) smoking has also been found to be hazardous. Establishment of causal relationship between smoking and lung cancer has been a landmark in the development of epidemiologic methods and concepts, which played the key role in the evaluation of risk factors and preventive intervention on the chronic degenerative disorders.
Summary
Smoking and cause of death in Korea: 11 years follow-up prospective study.
Sun Ha Jee, Ji Eun Yun, Jung Yong Park, Jae Woong Sull, Il Soon Kim
Korean J Epidemiol. 2005;27(1):182-190.
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Abstract
OBJECTIVE: In Korea, male smoking prevalence is among the world's highest and mortality rates from smoking-caused cancers, particularly lung cancer, are escalating. This cohort study examined the effects of cigarette smoking on the risk of mortality from all causes, cancers and cardiovascular diseases(CVD), and characterized the relationship of the risk with the amount and duration of cigarette smoking.
METHOD
A eleven-year prospective cohort study was carried out of on 1,207,592 Koreans, 30 to 95 years of age. The study population includes participants in a national insurance program, who completed a questionnaire on smoking and other risk factors. The main outcome measures were death from all causes, cancer and CVD, obtained through record linkage. At baseline, 482,997 men(60.0%) and 19,755(5.3%) women were current cigarette smokers.
RESULTS
In multivariate Cox proportional hazards models, controlling for age, alcohol drinking, exercise, and obesity, current smoking among men increased the risks of mortality from all cause death (relative risk[RR], 1.56; 95% confidence interval[CI], 1.52~1.59), all cancer (1.75, 1.68~1.82), and CVD(1.46, 1.38~1.55). Similar results were found for mortality among women. Smoking also increased the risks of mortality for cancer of the lung(4.60, 4.09~5.33) and other cancers, including larynx, bile duct, esophagus, liver, stomach, pancreas, bladder, and also leukemia. Current smoking among women increased the risk of lung cancer mortality(RR=2.83, 95% CI 2.38~3.36).
CONCLUSION
In Korea, smoking is an independent risk factor for death from all causes, CVD and a number of major cancers. The findings affirm the need for aggressive tobacco control in Korea in order to minimize the epidemic of smoking-caused disease.
Summary
Relationship among risk factors related to Human Papillomavirus infection among youth.
Jin Kyoung Oh, Young Hee Ju, Dong Young Yoon, Kap Yeol Jung, Se Il Jung, Hai Rim Shin
Korean J Epidemiol. 2005;27(1):118-128.
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Abstract
PURPOSE
To investigate the prevalence and related risk factors of infection with human papillomavirus(HPV) in young adults, and the interrelationships among the risk factors, school-based survey was conducted in Busan.
METHODS
A total of 1,430 male and female students(aged 16~25) participated in the survey that included self-administered questionnaire and, for males, physician-performed collection of exfoliated genital cells, for females, self-collection of vaginal cells. The prevalences of 25 HPV types were evaluated by a polymerase chain reaction-based assay.
RESULTS
HPV DNA detected more frequently in female students(15.2%) than in male students(8.7%). In female students, currently smoking cigarettes(OR=3.8, 95% CI=1.7~8.3) and having had penetrative sexual intercourse(OR=12.7, 95% CI=7.2~22.2) were the significant risk factors for HPV infection; in male students, there was nothing to show statistical significance. Smoking rate was 53.8% in males and 17.7% in females, and 55.6% of male students and 25.9% of female students reported having had a sexual intercourse. Smokers were more likely to have had a sexual intercourse than nonsmokers(OR=4.0, 95% CI=2.5~6.2, males; OR=9.1, 95% CI=5.6~14.7, females).
CONCLUSIONS
According to the strong interrelationship between sexual intercourse and smoking, multilateral behavioral intervention is needed to prevent infection with HPV.
Summary
The Relationship between Tobacco Price Rises and Willingness to Quit Smoking among University Students.
Wook jin Lee, Seung jun Lee, Jae rang Lee, Jung myung Lee, Joo hyoung Lee, Eun choel Park, hoo yeon Lee
Korean J Epidemiol. 2003;25(2):76-83.
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Abstract
BACKGROUND
The smoking rate of adult male is 68.2% in Korea and that of adolescent and women has risen recently. Ministry of Health and Welfare plans to raise the price of cigarettes by 1,000 Won per pack this year in hopes of securing funds to aid the underprivileged and discourage excessive smoking. In this study, we tried to find the relationship between tobacco price increase and willingness to quit smoking among university students, and the factors associated with willingness to quit smoking.
METHOD
The data were collected by questionnaire survey from 225 university students living in Seoul. The questionnaire contained items on age, sex, smoking history, economical status and the intention to quit smoking when the tobacco price be raised.
RESULT
The proportion of smokers who has the intention to quit smoking if the price of tobacco be raised by 3,000 Won was 46.2%. The factors associated with willingness to quit smoking were age of initiating smoking, opinion for price of cigarette, self efficacy scores, current plans to quit smoking, and viewpoint of changes in the rate of smokers.
CONCLUSION
The results showed that tobacco price rises will increase willingness to quit smoking among university students.
Summary
Test-retest Reliability of a Self-Administered Smoking Questionnaire for Middle and High School Students.
Sun Ha Jee, Ji Eun Yoon, Soyoung Won, Sujung Kim, Il Suh
Korean J Epidemiol. 2003;25(1):16-23.
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Abstract
PURPOSE
Since 1988, the annual or biannual survey was conducted by Korean Association of Smoking and Health (KASH) to examine the smoking rate, knowledge and attitude on smoking of students attending middle and high school in Korea. The objective of this study was to investigate the test-retest reliability of self-administered smoking questionnaire for Korean middle and high school students.
METHODS
For the test-retest study, we sampled 30 school among 106 schools which participated in annual survey on June of 2002. Among 30 schools, 26 schools (86.7%) were responded for this study.
RESULTS
1) For the subjects of 1st and 2nd surveys, there were no difference on smoking related variable including attitude, knowledge, perceived health status, father's smoking status, friend's smoking status, willingness to smoke, and readiness to quit smoking 2) For middle school students among male, current smoking rates were 3.5% for 1st survey and 3.0% for 2nd survey, which was statistically no significant. For high school students, however, current smoking rate of 1st survey was higher (21.1%) than that of 2nd (18.2%), although the rate was not significantly differed. 3) For middle school students among female, current smoking rates were 1.1% for 1st survey and 3.3% for 2nd survey, which was statistically no significant. Corresponding rate for high school students were 9.8% and 11.4%, respectively.
CONCLUSION
The results indicated that smoking questionnaire has been conducted by KASH is reliable for use in estimation for prevalence of smoking for middle and high school students.
Summary
The Study on the Association between Smoking and Coronary Artery Stenosis in Some Autopsy Cases.
Ik Jo Chung, Ki Soon Kim, Jong Park, So Yeon Ryu, Youn Shin Kim, Won Tae Lee, Sung Chul Lim
Korean J Epidemiol. 2000;22(1):42-51.
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Abstract
Coronary artery disease(CAD), such as atherosclerosis, myocardial infarction and sudden death has been considered the major cause of death for decades and their incidence and prevalence are still increasing. Numerous studies have been done on the risk factor analysis of CAD. But, they were usually based on the clinical and epidemiologic studies of the living patients. The purpose of this study was to evaluate the risk factors for the cardiovascular diseases in autopsy cases from Korean men. The author analysed 81 cases of heart who underwent legal autopsy from Aug. to Dec. 1998. The author measured percent stenosis of coronary artery, site of stenosis, perimeter of aorta, heart weight, body weight, and height and checked the past history including smoking, drinking and age. The results were as follows: 1) Coronary artery stenosis had a positive correlation with age, perimeter of aorta and smoking, but had no correlation with body weight, height, body mass index, heart weight, and drinking. 2) According to the logistic regression analysis, smoking amount and age were significantly associated with coronary artery stenosis. In conclusion, smoking was the most significant independent variable for coronary artery stenosis of some Korean men.
Summary
The Dose-response Relationship between Amount of Cigarette Smoking and Blood Lipids and Sugar.
Kang Sook Lee, Hyun Sook Hong, Jin Sook Jeong
Korean J Epidemiol. 1999;21(2):195-204.
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Abstract
PURPOSE
To explore the dose-response relationship between amount of cigarette smoking and blood lipids and sugar METHODS: In this cross-sectional study, we gathered the smoking history by self-administered questionnaire between 1994 and 1998 among 2888 men who visited the Health Promotion Center at St. Mary's Hospital, Seoul.
RESULTS
Adjusted for age, body mass index, the odds ratio of hypercholesterolemia (> or =240 mg/dl) were 2.06 (95% Confident Interval, 1.44-2.94), 2.03(95% CI 1.31-3.11), higher LDL-cholesterol(> or =160 mg/dl) were 2.06(95% CI 1.43-2.98), 2.25(95% CI 1.45-3.45) among group of men who smoked 21-30, over 30 cigarettes per day respectively compared with nonsmokers group. And adjusted for age, body mass index, the odds ratio of lower HDL-cholesterol(<35 mg/dl) were 1.76(95% CI 1.34-2.33), 1.98(95% CI 1.39-2.81), 2.35(95% CI 1.54-3.54), hypertriglyceridemia(> or =200 mg/dl) were 1.93(95% CI 1.47-2.55), 2.57(95% CI 1.82-3.62), 2.80(95% CI 1.86-4.21) among group of men who smoked 11-20, 21-30, over 30 cigarettes per day respectively compared with nonsmokers group. The adjusted odds ratio of diabetes(FBS> or =126 mg/dl) was 1.86(95% CI 1.10-3.06) only among who smoked more than 30 cigarettes compared with nonsmokers.
CONCLUSION
This study showed that there were dose-response relationships betwen amount of cigarette smoking and total cholesterol, HDL-cholesterol, LDL-cholesterol, triglyceride and sugar. It suggested that health promotion program including quitting and decrease of cigarette smoking would be necessary to prevent cardiovascular disease in Korean men.
Summary
The Changing Pattern of Cigarette Smoking of Students in Junior and Senior High Schools in Korea: 1988-1997.
Il Suh, Sun Ha Jee, Soh Yoon Kim, Dong Choun Shin, Soh Yeon Ryu, Il Soon Kim
Korean J Epidemiol. 1998;20(2):257-266.
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Abstract
In order to examine the actual condition of smoking, the change of knowledge and the attitude on smoking of the students attending junior and senior high schools in Korea, the survey was performed six times ranging from 1988 to 1997. The first two years, the survey was performed only for male students. Since 1991, both male and female students were surveyed. The students in junior and senior high school were selected by a random sampling method and surveyed by mail. In this survey, the number of classes of Junior and senior high schools in Korea was a sampling unit, and the classes were selected in proportion to the number of classes of each city and each county. The total number of respondents was 3,437 in 1988, 3,055 in 1989, 6,087 in 1991(2,923 of male, 3,164 of female), 7,067 in 1993(3,162 of male, 3,905 of female), 5,412 in 1995(2,598 of male, 2,814 of female), 4,754 in 1997(2,281 of male, 2,473 of female). The results obtained from the data analysis are as follows; 1.The ratio of smokers among male junior high school students has increased from 1.8% in 1988 to 3.9% in 1997. The ratio of smokers among female junior high school students has increased from 1.2% in 1991 to 3.9% in 1997. The ratio of smokers among male senior high school students has increased from 23.9% in 1988 to 35.3% in 1997. The ratio of smokers among male senior high school students has increased from 23.9% in 1988 to 35.3% 1997. And the ratio of smokers among female senior high school students has increased from 3.0% in 1991 to 8.7% in 1997. Especially the ratio of smokers among female junior high school students is same as that of male in 1997. 2. With respect to areas, the number of current smokers and the experienced ones was higher in the county than in the city in 1988. But in 1997, the number of current smokers and the experienced one is higher in the city than in the county. 3. In respect of whether or not there is a smoker among the member of a family, the odds ratio of smoking among the male senior high school students was 1.70 in 1988 and 1.94 in 1997. the odds ratio of smoking among female senior high school students was 1.43 in 1991 and 1.98 in 1997. This result showed that the effect of family smoking on adolescent smoking has not decreased.
Summary
Cohort Study on the Association getween Smoking and Proximal Hip Fracture in the Elderly People in Korea.
Byung Joo Park, Kui Oak Jung, Jong Myon Bae, Hye Won Koo, Dae Sung Kim
Korean J Epidemiol. 1998;20(2):246-256.
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Abstract
OBJECTIVE: To assess the association between cigarette smoking and hip fracture by using the Korea Pharmacoepidemiology Cohort(KPEC). BACKGROUND: Hip fracture is known as one of the major health problems because of its high incidence and serious consequences in the elderly people. Cigarette smoking, old age, female and low body weight have been reported as risk factors for osteoporosis which is regarded as one of the risk factors for hip fracture. But the relationship between cigarette smoking and hip fracture has not been directly evaluated yet. So we conducted a prospective cohort study to investigate the relationship between cigarette smoking and hip fracture in the Korean elderly. DESIGN: Prospective cohort study on the 8,994 elderly person aged 65 or more in Pusan, Korea between 1993 to 1996. METHODS: The Korea Phamacoepidemiology Cohort(KPEC) has been constructed with three kinds of data sources. One is from the Korea Medical Insurance Corporation; Medical Insurance Claims Database and Enrollee's Database. Other sources are from directly constructed pharmacy database and questionnaire data. incidence density and relative risk of smoking for hip fracture were estimated by using the KPEC database. Age and gender specific incidence density was calculated by dividing the number of hip fracture cases by person-years of the follow-up the cohort. Relative risks and their confidence intervals were computed by using multiple logistic regression by Windows version SAS 6.12.
RESULTS
The level of incidence density in female was higher than that in male, which was increasing with age in both gender. In the multivariate analysis, we observed significant relationship between soking and hip fracture in female(PR=1.94(1.01-3.76)) in the larger amount smoking group, after adjusting for the confounders; age, alcohol drinking, medication history, physical activity and body mass index, the relative risk became slightly decreased to 1.70(0.84-3.46).
CONCLUSION
Accoding to this result, we suggest that effective anti-smoking campaign should be established as soon as possible for the Korean elderly women.
Summary

Epidemiol Health : Epidemiology and Health
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