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Epidemiological data on nutritional disorders and outcomes in hospitalized Thai children: an analysis of data from the National Health Database 2015-2019
Suchaorn Saengnipanthkul, Jeeraparn Phosuwattanakul, Kaewjai Thepsuthammarat, Nalinee Chongviriyaphan
Epidemiol Health. 2022;44:e2022047.   Published online May 16, 2022
DOI: https://doi.org/10.4178/epih.e2022047
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AbstractAbstract PDFSupplementary Material
Abstract
OBJECTIVES
Malnutrition in hospitalized patients is a frequently overlooked health issue. We aimed to assess the prevalence and pattern of nutritional disorders in hospitalized Thai children from the National Health Database.
METHODS
Hospitalized children aged 1 month to 18 years diagnosed with nutritional disorders between 2015 and 2019 were retrospectively reviewed using the National Health Security Office data. Based on the International Classification of Diseases, 10th revision, Clinical Modification, nutritional disorders were classified into 3 major forms of malnutrition: undernutrition (E40-E46), overweight and obesity (E66), and micronutrient deficiencies (D50-D53, E50-E56, E58, E60-E61, and E63).
RESULTS
Out of 5,188,033 hospitalized children, malnutrition was identified in 115,254 (2.2%). Protein-energy malnutrition (PEM), overweight and obesity, and micronutrient deficiencies were prevalent in 0.21%, 0.27%, and 1.81%, respectively. Among those with micronutrient deficiencies, 95.0% had iron deficiency anemia, 2.2% had vitamin D deficiency, and 0.7% had zinc deficiency. Children aged under 5 years mostly had PEM, followed by iron deficiency anemia. Teenagers commonly had obesity and vitamin D deficiency. Patients with PEM who were admitted with common diseases had significantly longer hospital stays and higher hospital costs and mortality rates than those without PEM.
CONCLUSIONS
Hospitalized children had various nutritional disorders, particularly PEM, which was associated with higher morbidity and mortality. Nutritional screening tools should be utilized for the early detection and treatment of malnutrition. Specific International Classification of Diseases codes for nutritional care services and intervention should be available. Additionally, nutritional interventions should be reimbursed, along with nutritional education and empowerment of healthcare providers, to improve hospital care service and improve patient outcomes.
Summary
Korean summary
Key Message
Malnutrition is common among hospitalized Thai children, particularly protein energy malnutrition; it increases mortality, length of hospital stay, and hospital costs as well as exerts long-term effects on growth and development. Prevalence of overweight and obesity is increasing over the past 5 years, the vast majority involved patients 5 – 13 years of age.
Non-linear association between serum folate concentrations and dyslipidemia: Korea National Health and Nutrition Examination Survey 2016-2018
Taiyue Jin, Eun Young Park, Byungmi Kim, Jin-Kyoung Oh
Epidemiol Health. 2022;44:e2022046.   Published online May 15, 2022
DOI: https://doi.org/10.4178/epih.e2022046
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
We aimed to evaluate the association between serum folate concentrations and the prevalence of dyslipidemia.
METHODS
A total of 4,477 adults (2,019 male and 2,458 female) enrolled in the Korea National Health and Nutrition Examination Survey (KNHANES) 2016-2018 were included. Serum samples were used to assess folate concentrations and total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL)-cholesterol, and high-density lipoprotein (HDL)-cholesterol levels. Multivariate logistic regression with sampling weights was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs).
RESULTS
Elevated TC, TG, LDL-cholesterol and HDL-cholesterol levels were observed in 506 (11.3%), 646 (14.4%), 434 (9.7%), and 767 (17.1%) participants, respectively. We found non-linear trends between serum folate concentrations and the prevalence of hypercholesterolemia and hyper-LDL cholesterolemia from the restricted cubic smoothing spline. A higher prevalence of hypercholesterolemia was observed among participants in the first tertile of serum folate concentrations (OR,1.38; 95% CI, 1.05 to 1.79) than among those in the second tertile. However, a higher prevalence of hyper-LDL cholesterolemia was identified for both the first and third serum folate concentration tertiles (OR, 1.49; 95% CI, 1.08 to 2.05 and OR, 1.63; 95% CI, 1.20 to 2.20, respectively); furthermore, in these tertiles, the prevalence of hyper-LDL cholesterolemia was more pronounced among obese participants.
CONCLUSIONS
Non-linear associations may exist between serum folate concentrations and the prevalence of hypercholesterolemia and hyper-LDL cholesterolemia in adults. The findings suggest that more accurate recommendations about folate intake and folic acid fortification and supplementation should be provided.
Summary
Korean summary
본 연구는 국민건강영양조사 자료를 활용하여 한국 성인에서 혈청 엽산 농도와 고콜레스테롤혈증 및 저밀도지단백 (LDL) 콜레스테롤혈증 유병률 간의 비선형 연관성을 확인하였다. 이 결과는 적정 혈청 엽산 농도와 정확한 엽산 권장섭취량을 추정하는데 근거로 활용될수 있을 것이다.
Key Message
1. The prevalence of hypercholesterolemia and hyper-LDL cholesterolemia were non-linearly associated with serum concentrations of folate in the Korean population. 2. An inverse association with a significant linear trend between serum folate concentrations and prevalence of hypo-HDL cholesterolemia was observed. 3. In relation to folate intake and folic acid fortification and supplementation, more accurate recommendations should be provided.
Spatial analysis of tuberculosis treatment outcomes in Shanghai: implications for tuberculosis control
Jing Zhang, Xin Shen, Chongguang Yang, Yue Chen, Juntao Guo, Decheng Wang, Jun Zhang, Henry Lynn, Yi Hu, Qichao Pan, Zhijie Zhang
Epidemiol Health. 2022;44:e2022045.   Published online May 1, 2022
DOI: https://doi.org/10.4178/epih.e2022045
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AbstractAbstract PDFSupplementary Material
Abstract
OBJECTIVES
Tuberculosis (TB) treatment outcomes are a key indicator in the assessment of TB control programs. We aimed to identify spatial factors associated with TB treatment outcomes, and to provide additional insights into TB control from a geographical perspective.
METHODS
We collected data from the electronic TB surveillance system in Shanghai, China and included pulmonary TB patients registered from January 1, 2009 to December 31, 2016. We examined the associations of physical accessibility to hospitals, an autoregression term, and random hospital effects with treatment outcomes in logistic regression models after adjusting for demographic, clinical, and treatment factors.
RESULTS
Of the 53,475 pulmonary TB patients, 49,002 (91.6%) had successful treatment outcomes. The success rate increased from 89.3% in 2009 to 94.4% in 2016. The successful treatment outcome rate varied among hospitals from 78.6% to 97.8%, and there were 12 spatial clusters of poor treatment outcomes during the 8-year study period. The best-fit model incorporated spatial factors. Both the random hospital effects and autoregression terms had significant impacts on TB treatment outcomes, ranking 6th and 10th, respectively, in terms of statistical importance among 14 factors. The number of bus stations around the home was the least important variable in the model.
CONCLUSIONS
Spatial autocorrelation and hospital effects were associated with TB treatment outcomes in Shanghai. In highly-integrated cities like Shanghai, physical accessibility was not related to treatment outcomes. Governments need to pay more attention to the mobility of patients and different success rates of treatment among hospitals.
Summary
Korean summary
Key Message
Tuberculosis treatment outcomes, a key indicator in the assessment of TB control programs, were associated with spatial autocorrelation and hospital effects in Shanghai; however, they were not associated with physical accessibility to hospitals.
The impact of COVID-19 on cancer care in a tertiary hospital in Korea: possible collateral damage to emergency care
Shin Hye Yoo, Jin-Ah Sim, Jeongmi Shin, Bhumsuk Keam, Jun-Bean Park, Aesun Shin
Epidemiol Health. 2022;44:e2022044.   Published online May 1, 2022
DOI: https://doi.org/10.4178/epih.e2022044
  • 3,714 View
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  • 1 Citations
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
We investigated the impact of the COVID-19 pandemic on cancer care in a tertiary hospital in Korea without specific lockdown measures.
METHODS
A retrospective cohort of cancer patients from one of the largest tertiary hospitals in Korea was used to compare healthcare utilization in different settings (outpatient cancer clinic, the emergency department [ED], and admissions to the hematology/oncology ward) between January 1 and December 31, 2020 and the same time period in 2019. The percent changes in healthcare utilization between the 2 periods were calculated.
RESULTS
A total of 448,833 cases from the outpatient cohort, 26,781 cases from the ED cohort, and 14,513 cases from the admission cohort were reviewed for 2019 and 2020. The total number of ED visit cases significantly decreased from 2019 to 2020 by 18.04%, whereas the proportion of cancer patients remained stable. The reduction in ED visits was more prominent in patients with symptoms suspicious for COVID-19, high-acuity cases, and those who lived in non-capital city areas. There were no significant changes in the number of total visits, new cases in the outpatient clinic, or the total number of hospitalizations between the 2 periods.
CONCLUSIONS
During the pandemic, the number of ED visits significantly decreased, while the use of the outpatient clinic and hospitalizations were not affected. Cancer patients’ ED visits decreased after the COVID-19 outbreak, suggesting the potential for collateral damage outside the hospital if patients cannot reach the ED in a timely manner.
Summary
Korean summary
코로나19 이전인 2019년에 비해 코로나19 유행 첫 해인 2020년에 암환자의 1개 상급종합병원 응급실 방문이 유의하게 감소하였고, 특히 코로나19 의심 증상이 있거나, 중증도가 높거나, 비수도권 지역에 거주하는 환자에서 응급실 방문의 감소가 뚜렷하였다. 코로나19 이전과 코로나19 유행 시 외래 방문 암환자의 수, 신환 수는 큰 차이가 없었고, 입원한 암환자의 수 역시 유의한 차이가 없었다. 코로나19 대유행 시 암환자의 응급실 방문 감소는 병원 밖에서 적시에 응급실에 방문하지 못하는 부수적 피해의 가능성을 시사하여, 이에 대한 관심이 필요하다.
Key Message
The study identified a significant decrease in the emergency department visits of the cancer patients at a tertiary hospital in Korea during the COVID-19 pandemic. There were no significant changes in the number of total visits, new cases in the outpatient clinic, or the total number of hospitalizations between pre-COVID-19 and during-COVID-19 periods.

Citations

Citations to this article as recorded by  
  • COVID-19 Outbreak in Daegu City, Korea and Response to COVID-19: How Have We Dealt and What Are the Lessons?
    Shin-Woo Kim
    Journal of Korean Medical Science.2022;[Epub]     CrossRef
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
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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.
The association between fruit and vegetable consumption and metabolic syndrome in Korean adults: does multivitamin use matter?
Jihae Kim, Li-Juan Tan, Hyein Jung, Yumi Roh, Kyungjoon Lim, Sangah Shin
Epidemiol Health. 2022;44:e2022039.   Published online April 19, 2022
DOI: https://doi.org/10.4178/epih.e2022039
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Metabolic syndrome (MetS) is closely associated with dietary intake; however, few studies have investigated whether the consumption of fruits and vegetables and multivitamin use affect MetS in the Korean population. This study aimed to examine these effects in Korean adults.
METHODS
This was a cross-sectional study of 89,548 participants aged between 40 years and 69 years selected from the baseline data of the Health Examinees study conducted in Korea. Fresh vegetable and fruit consumption was assessed using a validated 106-item food frequency questionnaire. MetS and its components were defined using the National Cholesterol Education Program, Adult Treatment Panel III criteria. Multivariate logistic regression analyses were conducted to identify associations of fresh vegetable, fruit, and fresh vegetable+fruit consumption and multivitamin use with the prevalence of MetS.
RESULTS
Female in the highest quartile of fresh vegetable, fruit, and fresh vegetable + fruit consumption exhibited a lower prevalence of MetS than those in the lowest quartile. An inverse association with the prevalence of MetS was observed among male with only fresh vegetable consumption. The interaction between the 3 categories and multivitamin intake on the prevalence of MetS was not significant (all pinteraction>0.05), regardless of sex.
CONCLUSIONS
Multivitamin use and consumption of fresh vegetables and fruits had no significant synergistic effects. Although fresh vegetable and fruit consumption showed an inverse association with the prevalence of MetS, this relationship was not altered by multivitamin use.
Summary
Korean summary
본 연구는 한국인 유전체역학조사사업의 도시코호트 조사에 참여한 40-69세 한국 성인 89 548명의 과일과 채소의 섭취와 종합비타민 섭취가 대사증후군에 미치는 영향을 분석하였다. 본 연구에서는 매일 다양한 과일과 채소를 섭취하면, 종합비타민의 섭취와 상관없이 대사증후군 유병 위험도를 낮추는 것을 확인하였다. 따라서, 대사증후군 예방을 위해서는 일상적인 식사에서 충분한 과일과 채소를 섭취하는 것이 권장된다.
Key Message
This study aimed to examine whether the consumption of fruits and vegetables and multivitamin use affect MetS among Korean middle-aged adults. Data was from the Health Examinees Study among 89 548 subjects. Results suggested that fruits and vegetables consumption was related with a decreased prevalence of MetS. However, there was no significant synergistic effect between the consumption of fruits and vegetables and multivitamin use in further reducing MetS prevalence.
The vaccination coverage rate in under-5 children in Nasiriyah, Iraq before and during the COVID-19 pandemic
Ali Rifaat Alhaddad, Elham Ahmadnezhad, Akbar Fotouhi
Epidemiol Health. 2022;44:e2022035.   Published online March 14, 2022
DOI: https://doi.org/10.4178/epih.e2022035
  • 3,968 View
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  • 2 Citations
AbstractAbstract PDF
Abstract
providOBJECTIVES: This study compared the vaccination coverage rate (VCR) in children under 5 years old in Nasiriyah, Iraq before and during the coronavirus disease 2019 (COVID-19) pandemic.
METHODS
This cross-sectional study was conducted in the city of Nasiriyah in southeastern Iraq, with data collected from 79 primary healthcare facilities. This study evaluated the VCR in 3 periods (2018, 2019, and 2020) using multi-level random sampling. Pertinent data were extracted from the vaccination records of 598 children for Bacillus Calmette-Guérin (BCG); pentavalent 1, 2, and 3; measles; and activated oral poliovirus vaccine 1 and 2. Missing data were completed by telephone calls to participants’ parents. Logistic regression was applied to compare and estimate the odds ratios (ORs) with 95% confidence intervals (CIs) for the association between VCR and related factors.
RESULTS
The data showed the greatest decline in the studied vaccines in 2020. Among the vaccines studied, BCG had the highest rate in all 3 periods (100% VCR) and measles had the lowest rate (83.7%), reaching 63.6% in 2020 (p<0.001). The highest OR among all types of vaccine were found for the pentavalent-3 vaccine among city dwellers and those born in 2020 (OR, 2.67; 95% CI, 1.39 to 5.10 and OR, 2.34; 95% CI, 1.28 to 4.28, respectively).
CONCLUSIONS
The VCR for children decreased during the COVID-19 pandemic in Iraq, and new health policies are needed to increase the coverage rate. Improving the knowledge and attitudes of parents, as well as removing barriers or risk factors, can also be effective in improving the VCR.
Summary
Korean summary
Key Message
Vaccination is one of the most important essential health services. COVID-19 pandemic has reduced the coverage of vaccination among under five.

Citations

Citations to this article as recorded by  
  • Current Impact and Long-Term Influence of the COVID-19 Pandemic on Iraqi Healthcare Systems: A Case Study
    Taysir Al Janabi, Sunny Chung
    Epidemiologia.2022; 3(4): 412.     CrossRef
  • Dropout of Vaccination Among Iraqi Children
    Maha. A. Kadim, Anees Flayyih Abdulhasan, Zainab Abdulameer Abdulrasol, Ali Fadhil Obaid
    South Asian Journal of Social Sciences and Humanities.2022; 3(6): 163.     CrossRef
Model-based cost-effectiveness analysis of oral antivirals against SARS-CoV-2 in Korea
Youngji Jo, Sun Bean Kim, Munkhzul Radnaabaatar, Kyungmin Huh, Jin-Hong Yoo, Kyong Ran Peck, Hojun Park, Jaehun Jung
Epidemiol Health. 2022;44:e2022034.   Published online March 12, 2022
DOI: https://doi.org/10.4178/epih.e2022034
  • 6,055 View
  • 544 Download
  • 8 Citations
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Many countries have authorized the emergency use of oral antiviral agents for patients with mild-to-moderate cases of coronavirus disease 2019 (COVID-19). We assessed the cost-effectiveness of these agents for reducing the number of severe COVID-19 cases and the burden on Korea’s medical system.
METHODS
Using an existing model, we estimated the number of people who would require hospital/intensive care unit (ICU) admission in Korea in 2022. The treatment scenarios included (1) all adult patients, (2) elderly patients only, and (3) adult patients with underlying diseases only, compared to standard care. Based on the current health system capacity, we calculated the incremental costs per severe case averted and hospital admission for each scenario.
RESULTS
We estimated that 236,510 COVID-19 patients would require hospital/ICU admission in 2022 with standard care only. Nirmatrelvir/ritonavir (87% efficacy) was predicted to reduce this number by 80%, 24%, and 17% when targeting all adults, adults with underlying diseases, and elderly patients (25, 8, and 4%, respectively, for molnupiravir, with 30% efficacy). Nirmatrelvir/ritonavir use is likely to be cost-effective, with predicted costs of US$8,878, US$8,964, and US$1,454, per severe patient averted for the target groups listed above, respectively, while molnupiravir is likely to be less cost-effective, with costs of US$28,492, US$29,575, and US$7,915, respectively.
CONCLUSIONS
In Korea, oral treatment using nirmatrelvir/ritonavir for symptomatic COVID-19 patients targeting elderly patients would be highly cost-effective and would substantially reduce the demand for hospital admission to below the capacity of the health system if targeted to all adult patients instead of standard care.
Summary
Korean summary
본 연구는 감염병 수리모형을 바탕으로 두가지 항바이러스제의 (nirmatrelvir/ritonavir와 molnupiravir) 비용 효익을 평가하였다. 본 모델에 따르면, 2022년 한국에서, 현재 의료시스템의 수용한계를 넘는 코로나 19 대유행이 발생할 때, nirmatrelvir/ritonavir 를 코로나 감염 및 증상 있는 고령층 환자들을 대상으로 투여할 경우 높은 비용 효익이 기대되고 (중증환자 1명 감소효과에$1,454 비용소요), 성인 환자 대상으로 투여할 경우, (molnupiravir이나 nirmatrelvir/ritonavir를 투여하지 않는) 일반 치료에 비해서 전체 입원 수요를 80% 줄일 것으로 기대된다.
Key Message
Given an expected high epidemic resurgence in 2022 that could exceed South Korea’s current health system capacity, oral treatment using nirmatrelvir/ritonavir for symptomatic COVID-19 patients may be a highly cost-effective solution if targeted to elderly patients ($1,454 per severe case averted) and substantially reduce the demand for hospital admission (80%, 188,478 patients) below the capacity of the health system if targeted to all adult patients compared to standard care.

Citations

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  • Multi-Faceted Analysis of COVID-19 Epidemic in Korea Considering Omicron Variant: Mathematical Modeling-Based Study
    Youngsuk Ko, Victoria May Mendoza, Renier Mendoza, Yubin Seo, Jacob Lee, Jonggul Lee, Donghyok Kwon, Eunok Jung
    Journal of Korean Medical Science.2022;[Epub]     CrossRef
  • Adjusting non-pharmaceutical interventions based on hospital bed capacity using a multi-operator differential evolution
    Victoria May P. Mendoza, Renier Mendoza, Jongmin Lee, Eunok Jung
    AIMS Mathematics.2022; 7(11): 19922.     CrossRef
  • The Possible Impact of Nationwide Vaccination on Outcomes of the COVID-19 Epidemic in North Korea: A Modelling Study
    Sung-mok Jung, Jaehun Jung
    Journal of Korean Medical Science.2022;[Epub]     CrossRef
  • Impact of the Use of Oral Antiviral Agents on the Risk of Hospitalization in Community Coronavirus Disease 2019 Patients (COVID-19)
    Terry Cheuk Fung Yip, Grace Chung Yan Lui, Mandy Sze Man Lai, Vincent Wai Sun Wong, Yee Kit Tse, Bosco Hon Ming Ma, Elsie Hui, Maria K W Leung, Henry Lik Yuen Chan, David Shu Cheong Hui, Grace Lai Hung Wong
    Clinical Infectious Diseases.2022;[Epub]     CrossRef
  • Medications for early treatment of COVID ‐19 in Australia
    Adam Polkinghorne, James M Branley
    Medical Journal of Australia.2022;[Epub]     CrossRef
  • Comparative effectiveness of sotrovimab and molnupiravir for prevention of severe covid-19 outcomes in patients in the community: observational cohort study with the OpenSAFELY platform
    Bang Zheng, Amelia C A Green, John Tazare, Helen J Curtis, Louis Fisher, Linda Nab, Anna Schultze, Viyaasan Mahalingasivam, Edward P K Parker, William J Hulme, Sebastian C J Bacon, Nicholas J DeVito, Christopher Bates, David Evans, Peter Inglesby, Henry D
    BMJ.2022; : e071932.     CrossRef
  • Nirmatrelvir plus ritonavir in COVID-19: a profile of its use
    Hannah A. Blair
    Drugs & Therapy Perspectives.2022;[Epub]     CrossRef
  • Treatment Options for Patients With Mild-to-Moderate Coronavirus Disease 2019 in Korea
    Jaehyun Jeon, BumSik Chin
    Journal of Korean Medical Science.2022;[Epub]     CrossRef
Association between dietary and suicidal behaviors in adolescents in Korea based on the Youth Risk Behavior Survey (2015-2020)
Youngrong Lee, Ye Jin Jeon, Jee-Seon Shim, Sun Jae Jung
Epidemiol Health. 2022;44:e2022033.   Published online March 12, 2022
DOI: https://doi.org/10.4178/epih.e2022033
  • 4,528 View
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study explored the association between dietary and suicidal behaviors of Korean adolescents and investigated differences in this association in children of immigrant parents.
METHODS
The sample (n=368,138) was collected from the Korea Youth Risk Behavior Survey from 2015 to 2020. Participants who agreed to provide family information (n=313,689) were classified according to their parents’ nationality. The study variables were 11 self-reported dietary behaviors, and their composite dietary behaviors (i.e., nutrient deprivation and unhealthy food consumption) that resulted from principal component analysis. The association between study variables and suicide-related outcomes (i.e., suicidal ideation, suicide planning, and suicide attempts) was analyzed by multiple logistic regression with adjustment for covariates. Adjusted odds ratios (aORs) and 95% confidence intervals (CIs) were calculated.
RESULTS
Participants who skipped key meals and foods were more likely to have attemped suicide (aOR [95% CI]: skipping breakfast ≥5 days/wk, 1.28 [1.21 to 1.35]; consuming fruits <1 times/wk: 1.42 [1.32 to 1.52]; consuming vegetables <1 times/wk: 1.72 [1.53 to 1.93]; consuming milk <3 times/wk: 1.07 [0.99 to 1.16]). The associations were prominent in third culture kids (TCKs) (aOR [95% CI]: 2.23 [1.61 to 3.09]; 2.32 [1.61 to 3.35]; 2.63 [1.50 to 4.60]; 1.69 [1.09 to 2.63], respectively). Participants who consumed unhealthy foods (fast food, caffeinated and sugary drinks) more frequently were more likely to have attempted suicide (aOR, 1.55; 95% CI, 1.38 to 1.73). This association was also more prominent in TCKs (aOR, 2.08; 95% CI, 1.08 to 4.01).
CONCLUSIONS
Our findings indicate a positive association between unfavorable dietary behaviors and outcomes related to suicide, and this association appears to be notable in adolescents with immigrant parents.
Summary
Korean summary
• 한국 청소년의 식이 행동과 자살 행동 사이의 연관성과 한국인 부모와 이민자 부모 자녀에서 위의 연관성 차이를 조사하였다. • 청소년의 결식 빈도 증가, 과일, 야채, 우유 섭취 감소는 자살 행동과 유의한 연관성이 있었으며 이민자 부모를 둔 청소년에서 연관성의 크기가 더 컸다. • 패스트푸드, 카페인, 가당 음료, 인스턴트 음식을 더 자주 섭취하는 청소년은 자살을 시도할 가능성이 더 높았으며 이민자 부모를 둔 청소년에서 더 큰 연관성을 보였다.
Key Message
The study found positive associations between undesirable dietary behaviors (e.g., skipping breakfast, increased consumption of fast food or instant food product) and outcomes related to suicide (i.e., suicide ideation, planning, and attempt) in Korean adolescents, and these associations appear to be prominent in adolescents with immigrant parents than those with Korean parents.
Unemployment and COVID-19-related mortality: a historical cohort study of 50,000 COVID-19 patients in Fars, Iran
Alireza Mirahmadizadeh, Mohammad Taghi Badeleh Shamooshaki, Amineh Dadvar, Mohammad Javad Moradian, Mohammad Aryaie
Epidemiol Health. 2022;44:e2022032.   Published online March 12, 2022
DOI: https://doi.org/10.4178/epih.e2022032
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AbstractAbstract PDF
Abstract
OBJECTIVES
Previous studies have estimated the risk of death associated with unemployment in the coronavirus disease 2019 (COVID-19) pandemic, but no studies have examined unemployment before COVID-19 infection as a risk factor for COVID-19-related mortality. Thus, this study aimed to investigate COVID-19 mortality among this population.
METHODS
Data on 50,038 people aged 25-59 years were collected from 38 agencies in Fars Province, Iran, from February 2020 to July 2021. Follow-up lasted from participants’ diagnosis with COVID-19 based on the results of a reverse transcription-polymerase chain reaction test to participants’ death or the end of the study period. The association between unemployment and COVID-19-related mortality was estimated using the Poisson regression method, and a sensitivity analysis was conducted to calculate the E-value.
RESULTS
Unemployment was associated with a 2.41-fold (95% confidence interval [CI], 2.01 to 2.90) higher age-adjusted and sex-adjusted risk of COVID-19-related mortality. The adjusted Poisson regression analysis showed 8.82 (95% CI, 6.42 to 12.11), 2.84 (95% CI, 1.90 to 4.24), and 1.58 (95% CI, 1.24 to 2.01) times higher risks of COVID-19-related mortality among unemployed people aged 25-39 years, 40-49 years, and 50-59 years, respectively, than among their employed counterparts. Unemployment increased the risk of COVID-19 mortality by 3.31 (95% CI, 2.31 to 4.74) and 2.30 (95% CI, 1.86 to 2.84) times in female and male, respectively. The E-value was 3.43, reflecting the minimum strength of confounding required to shift the association between unemployment and COVID-19-related mortality toward the null.
CONCLUSIONS
Unemployment prior to COVID-19 infection increased the risk of COVID-19-related mortality. COVID-19-related mortality disproportionately impacted unemployed women and younger unemployed people.
Summary
Korean summary
Key Message
This study adds new insights to the existing body of work on the topic of unemployment and COVID-19-related mortality. Unemployment prior to COVID-19 infection was found to increase the risk of COVID-19-related mortality, which disproportionately burdened unemployed female and younger unemployed people. It seems older unemployed people and unemployed males may tend to have more financial resources and savings when they lose a job, making younger unemployed people and unemployed female more vulnerable to financial stress, which can lead to deferred care and increase their risk of COVID-19-related mortality.
Associations of fasting glucose and glycated hemoglobin with vitamin D levels according to diabetes mellitus status in Korean adults
Yerin Hwang, Jiyoung Jang, Myung-Hee Shin
Epidemiol Health. 2022;44:e2022025.   Published online February 21, 2022
DOI: https://doi.org/10.4178/epih.e2022025
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
According to previous studies, vitamin D deficiency might increase the risk of type 2 diabetes mellitus (DM). However, few studies have examined whether vitamin D continues to affect glucose control after DM diagnosis. Therefore, we examined the association between vitamin D and glucose levels in individuals with and without DM.
METHODS
We analyzed data for 32,943 adults aged 19 years and older from the 2008 to 2014 Korea National Health and Nutrition Examination Survey. Patients were classified into 3 groups according to the 25-hydroxyvitamin D concentration. DM was defined as a fasting glucose level ≥126 mg/dL, current use of DM medications or insulin injections, or a self-reported diagnosis of DM by a doctor.
RESULTS
In male DM patients, the hemoglobin A1c (HbA1c) level increased significantly as vitamin D levels became severely deficient. In male and postmenopausal female with abnormal HbA1c, those with severe vitamin D deficiency had significantly higher HbA1c levels (p for trend=0.004 and 0.022 for male and postmenopausal female, respectively). Significant differences were found between participants with normal and abnormal HbA1c levels in both male and female. However, regardless of sex or menopausal status, there was no significant association between vitamin D and fasting glucose in any of the fasting glucose subgroups.
CONCLUSIONS
Male and female with abnormal HbA1c levels showed markedly elevated blood glucose when they also had vitamin D deficiency. A more distinct difference was observed in the HbA1c subgroups than in the fasting glucose subgroups.
Summary
Korean summary
당화혈색소 비정상군에서 비타민 D가 부족할수록 혈당의 상승을 보였다. 현재까지 비타민 D와 혈당 조절과 관련하여 한국인을 대상으로 한 연구는 매우 미비한 상황이며, 한국인을 대상으로 한 연구 결과를 반영한 당뇨병 환자들의 혈당 조절 관리 지침 마련이 필요하다.
Key Message
Guidelines are needed for managing glucose control in DM patients that reflect the results of this research performed among Koreans. Additional large-scale longitudinal studies should be conducted to clarify the causal relationships underlying this association.
Recent trends in opioid prescriptions in Korea from 2002 to 2015 based on the Korean NHIS-NSC cohort
Joungyoun Kim, Sang-Jun Shin, Jihyun Yoon, Hyeong-Seop Kim, Jae-woo Lee, Ye-seul Kim, Yonghwan Kim, Hyo-Sun You, Hee-Taik Kang
Epidemiol Health. 2022;44:e2022029.   Published online February 21, 2022
DOI: https://doi.org/10.4178/epih.e2022029
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Opioids are prescribed to treat moderate to severe pain. We investigated recent trends in opioid (morphine, oxycodone, fentanyl, and hydromorphone) prescriptions using data from the Korean National Health Insurance Service-National Sample Cohort between 2002 and 2015.
METHODS
The morphine milligram equivalent (MME) was calculated to standardize the relative potency of opioids. The number (cases) or amount (MME) of annual opioid prescriptions per 10,000 registrants was computed to analyze trends in opioid prescriptions after age standardization. Joinpoint regression analysis was conducted to calculate the annual percentage change and average annual percentage change (AAPC).
RESULTS
The number (cases) of prescriptions per 10,000 registrants increased from 0.07 in 2002 to 41.23 in 2015 (AAPC, 76.0%; 95% confidence interval [CI], 61.6 to 91.7). The MME per 10,000 registrants increased from 15.06 in 2002 to 40,727.80 in 2015 (AAPC, 103.0%; 95% CI, 78.2 to 131.3). The highest AAPC of prescriptions and MME per 10,000 registrants were observed in the elderly (60-69 years) and in patients treated at general hospitals. Fentanyl prescriptions increased most rapidly among the 4 opioids.
CONCLUSIONS
Consumption of opioids greatly increased in Korea over the 14-year study period.
Summary
Korean summary
- 중강도 이상의 통증을 치료하기위해 아편유사체가 처방되고 있다. - 본 연구는 아편유사체(모르핀, 옥시코돈, 펜타닐, 히드로모르폰)의 처방 추세를 조인포인트 회귀분석으로 분석하였다. - 아편유사체의 사용은 증가하고 있다. 특히 노인과 종합병원에서 아편유사체의 처방은 지속적으로 증가하고 있으며, 펜타닐 처방이 제일 많이 증가하였다.
Key Message
- Opioid prescriptions (morphine, oxycodone, fentanyl, and hydromorphone) fentanyl to treat moderate to severe pain have increased. - Trends in opioid prescriptions were analyzed using Joinpoint regression analysis after age standardization, based on the Korean National Health Insurance Service-National Sample Cohort between 2002 and 2015. - Trends in opioid prescriptions have increased. - In particular, the highest increment in opioid prescription was observed in the elderly population (60-69 years) and patients admitted in general hospitals. - Fentanyl prescriptions among four types of opioids increased most rapidly.

Citations

Citations to this article as recorded by  
  • Prevention, diagnosis, and treatment of opioid use disorder under the supervision of opioid stewardship programs: it’s time to act now
    Eun-Ji Kim, Eun-Jung Hwang, Yeong-Min Yoo, Kyung-Hoon Kim
    The Korean Journal of Pain.2022; 35(4): 361.     CrossRef
  • Economic burden of opioid misuse focused on direct medical costs
    Miryoung Kim, Siin Kim, Hae Sun Suh
    Frontiers in Pharmacology.2022;[Epub]     CrossRef
Seroprevalence of SARS-CoV-2 antibodies in the community based on participants in the 2020 Korea National Health and Nutrition Examination Survey
Ah-Ra Kim, Dohsik Minn, Su Hwan Kim, Hyeon Nam Do, Byoungguk Kim, Young Sill Choi, Dong-Hyun Kim, Eun-Jee Oh, Kyungwon Oh, Donghyok Kwon, Jun-Wook Kwon, Sung Soon Kim, June-Woo Lee
Epidemiol Health. 2022;44:e2022028.   Published online February 21, 2022
DOI: https://doi.org/10.4178/epih.e2022028
  • 4,182 View
  • 336 Download
  • 1 Citations
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
The Korea National Health and Nutrition Examination Survey (KNHANES) is a nationwide cross-sectional surveillance system that assesses the health and nutritional status of the Korean population. To evaluate the occurrence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in the community, we investigated the prevalence of anti-SARS-CoV-2 antibodies in the sera of KNHANES participants.
METHODS
Subjects were recruited between April 24 and December 12, 2020. In total, 5,284 subjects aged 10-90 years from 17 regions participated. SARS-CoV-2 antibodies were screened using the Elecsys Anti-SARS-CoV-2 assay. Positive samples were verified using 4 different SARS-CoV-2 antibody assays and the plaque reduction neutralizing test. The final seropositivity criteria were a positive screening test and at least 1 positive result from the 5 additional tests.
RESULTS
Almost half (49.2%; 2,600/5,284) of participants were from metropolitan areas, 48.9% were middle-aged (40-69 years), and 20.5% were in their 20s or younger. The seropositivity rate was 0.09% (5/5,284). Three of the 5 antibody-positive subjects had a history of infection, of whom 2 were infected abroad and 1 was infected in a local cluster outbreak.
CONCLUSIONS
The low SARS-CoV-2 antibody seroprevalence in Korea indicates that there have been few coronavirus disease 2019 (COVID-19) cases due to successful COVID-19 management measures (e.g., diagnostic tests for overseas arrivals, national social distancing, and strict quarantine measures). Moreover, asymptomatic infections were uncommon due to active polymerase chain reaction testing. However, hidden infections may exist in the community, requiring the continuation of quarantine and vaccination measures.
Summary
Korean summary
코로나19에 대한 방역대책 및 예방접종 정책 수립을 위한 과학적 근거를 확보하기 위하여 2020년도 국민건강영양조사(이하 국건영) 참여자 5,284명에 대해 코로나19 항체보유율을 조사함. 그 결과 2020년도 국건영 참여자의 항체양성률은 0.09%(5/5,284)였으며, 이중 확진 이력이 있는 사람은 3명이었음. 따라서 지역사회 미진단 감염자는 2명으로 확인됨. 국내 항체보유율은 해외 사례에 비해 낮으며, 이는 적극적인 방역관리에 따른 것으로 사료되며, 지역사회에 미진단 감염자가 존재함이 확인되어 이들에 대한 철저한 관리가 요구됨.
Key Message
The low SARS-CoV-2 antibody seroprevalence in Korea indicates that there have been few COVID-19 cases due to successful management measures, however, hidden infections may exist in the community, requiring the continuation of quarantine and vaccination measures.

Citations

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  • Accelerated Cognitive Function Decline in Community-Dwelling Older Adults during COVID-19 Pandemic: The Korean Frailty and Aging Cohort Study (KFACS)
    Jaehoon Jung, Sunyoung Kim, Byungsung Kim, Miji Kim, Jisoo Yang, Dongmin Chung, Changwon Won
    International Journal of Environmental Research and Public Health.2022; 19(17): 10666.     CrossRef
Association between levels of physical activity and low handgrip strength: Korea National Health and Nutrition Examination Survey 2014-2019
Hyungsoon Ahn, Hwa Young Choi, Moran Ki
Epidemiol Health. 2022;44:e2022027.   Published online February 21, 2022
DOI: https://doi.org/10.4178/epih.e2022027
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to investigate the association between levels of physical activity (PA) and low handgrip strength in Korean adults.
METHODS
Our cross-sectional study design included 24,109 Korean adults older than 19 years of age who participated in the Korea National Health and Nutrition Examination Survey 2014–2019. Low handgrip strength is described as hand strength less than the cut-off value of the 20th percentile of handgrip strength from a healthy population in each gender and age group. PA was categorized into three levels (inactive, active, and highly active) according to the World Health Organization’s global recommendations on PA for health. Multivariable logistic regression analysis was used to examine the association between levels of PA and low handgrip strength.
RESULTS
Odds ratios (ORs) for low handgrip strength were significantly higher in middle-aged women who were active (adjusted odds ratio [aOR], 1.40; 95% confidence interval [CI], 1.15 to 1.69) and inactive (aOR, 1.47; 95% CI, 1.23 to 1.76) than in those highly active in walking exercise. Most of older people had significantly higher ORs for low handgrip strength in active compared to highly active in the context of aerobic, muscle strengthening, and walking exercise.
CONCLUSIONS
Walking exercise was associated with a lower risk of sarcopenia in middle-aged women and older individuals. However, further studies are necessary to confirm the causal relationship between levels of PA and low handgrip strength.
Summary
Korean summary
본 연구는 국민건강영양조사 2014-2019년도 자료를 활용하여 한국인 만 19세 이상 건강한 성인을 대상으로 낮은 악력의 기준값을 성별 및 연령그룹별로 도출하고 유산소 운동, 근력 운동, 걷기 운동 수준과 낮은 악력의 연관성을 분석하였다. 분석 결과, 중년 여성과 노년층에서 걷기 운동이 근감소증 발생의 예방과 연관성이 있음을 알 수 있었다.
Key Message
The association between levels of physical activity and low handgrip strength was different by sex and age groups. For women, walking exercise was associated with low handgrip strength, but not for men. By age groups, muscle strengthening exercise could help prevent sarcopenia in the young population, aerobic exercise has the potential to prevent sarcopenia in middle-aged individuals, and walking exercise could reduce sarcopenia risk in older individuals.

Citations

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  • Lower grip strength and insufficient physical activity can increase depressive symptoms among middle-aged and older European adults: a longitudinal study
    Han Zheng, Qingwen He, Hongyan Xu, Xiaowei Zheng, Yanfang Gu
    BMC Geriatrics.2022;[Epub]     CrossRef
The medium-term consequences of a COVID-19 lockdown on lifestyle among Spanish older people with hypertension, pulmonary disease, cardiovascular disease, musculoskeletal disease, depression, and cancer
Irene Rodríguez-Gómez, Coral Sánchez-Martín, Francisco J. García-García, Esther García-Esquinas, Marta Miret, Germán Vicente-Rodriguez, Narcís Gusi, Asier Mañas, José A. Carnicero, Marcela Gonzalez-Gross, José L. Ayuso-Mateos, Fernando Rodríguez-Artalejo, Leocadio Rodríguez-Mañas, Ignacio Ara
Epidemiol Health. 2022;44:e2022026.   Published online February 21, 2022
DOI: https://doi.org/10.4178/epih.e2022026
  • 4,794 View
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AbstractAbstract PDFSupplementary Material
Abstract
OBJECTIVES
This study investigated the associations of chronic diseases with changes in lifestyle and health behaviours in older people following the coronavirus disease 2019 (COVID-19) lockdown in Spain and compared the differences in changes over time.
METHODS
1,092 participants (80.3±5.6 years; 66.5% female) from 2 Spanish cohorts were included. Telephone-based questionnaires were conducted to evaluate lifestyle and health risk behaviours at the end of lockdown and 7 months post-lockdown. Participants were classified as having physician-diagnosed chronic diseases based on self-reported data. Cox proportional models adjusted for major confounders were used.
RESULTS
Compared to those without the corresponding chronic diseases, older people with hypertension were less likely to report increased alcohol consumption (hazard ratio [HR], 0.73; 95% confidence interval [CI], 0.55 to 0.99). Pulmonary diseases were associated with lower risks of increased sedentary time (HR, 0.58; 95% CI, 0.39 to 0.86) and worsened sleep quality (HR, 0.56; 95% CI, 0.36 to 0.87), while cardiovascular diseases were associated with a lower risk of decreased sedentary time (HR, 0.58; 95% CI, 0.38 to 0.88). Depression was linked to a higher likelihood of improved diet quality (HR, 1.53; 95% CI, 1.00 to 2.36). Cancer pacients were less likely to have worsened sleep quality (HR, 0.44; 95% CI, 0.22 to 0.89) but more likely to have reduced their frequency of social contact (HR, 2.05; 95% CI, 1.05 to 3.99).
CONCLUSIONS
Older people with chronic diseases showed beneficial changes in lifestyle and health risk behaviours after the COVID-19 lockdown. In particular, older people with hypertension, pulmonary disease, and cancer tended to make beneficial lifestyle and health behaviour changes. However, older people with cardiovascular disease and depression engaged in more health risk behaviours.
Summary
Korean summary
Key Message
Although the majority of older people with chronic diseases showed beneficial changes in lifestyle and health risk behaviors after the COVID-19 lockdown, public health interventions should be developed to prevent the dangerous long-term effects that COVID-19 pandemic-type situations may have on the health of older people, with a particular focus on older people with CVD and depression that seem to have experienced more health risk behaviors during the COVID-19 pandemic than older people with other chronic diseases.

Epidemiol Health : Epidemiology and Health