Epidemiology and Health

Original Articles

The physical activity paradox in relation to work ability and health-related productivity loss in Korea: Heejoo Ko, Dohwan Kim, Seong-Sik Cho, Mo-Yeol Kang; Epidemiol Health. 2023;45:e2023096. Published online October 28, 2023; DOI: https://doi.org/10.4178/epih.e2023096

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Abstract PDF: Abstract
OBJECTIVES
The physical activity paradox suggests that occupational physical activity (OPA), unlike leisure-time physical activity (LTPA), may detrimentally impact health. We explored the relationships of OPA and LTPA with work ability (WA) and health-related productivity loss (HRPL).
METHODS
This study included 5,501 workers in Korea who were recruited in 2021 through a web-based cross-sectional questionnaire. The questionnaire was utilized to quantify OPA and LTPA in metabolic equivalents, while WA and HRPL were also measured. Non-parametric regression, using a generalized additive model (GAM), was employed to visualize the relationships of LTPA and OPA with WA and HRPL. Mean differences in WA and HRPL, in relation to OPA and LTPA, were examined using linear regression models. These models were adjusted for covariates including sex, age, body mass index, education level, alcohol consumption, smoking history, insomnia, occupation, hours worked, and income.
RESULTS
The GAM and linear regression analyses revealed that higher LTPA corresponded with higher WA and lower HRPL. In contrast, as OPA increased, WA decreased and HRPL increased. However, within the group with high OPA, HRPL was not significantly lower in the high-LTPA subgroup relative to the low-LTPA subgroup (mean difference=1.92%, p=0.343). This pattern was especially pronounced among workers aged 60 years and older, with an increase in HRPL observed with increasing LTPA among the respondents with high OPA.
CONCLUSIONS
High LTPA levels were associated with elevated WA and diminished HRPL. In contrast, higher levels of OPA were associated with lower WA and higher HRPL.; Summary

The association between occupational stress level and health-related productivity loss among Korean employees: Jonghee Chung, Jin-Hyo Kim, Jae Yoon Lee, Hee Seok Kang, Dong-wook Lee, Yun-Chul Hong, Mo-Yeol Kang; Epidemiol Health. 2023;45:e2023009. Published online December 28, 2022; DOI: https://doi.org/10.4178/epih.e2023009

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3 Web of Science
3 Crossref

Abstract

OBJECTIVES
Occupational stress management is particularly important for successful business operations, since occupational stress adversely affects workers’ health, eventually lowering their productivity. Therefore, this study aimed to investigate the correlation between occupational stress and health-related productivity loss (HRPL) among Korean workers.

METHODS

In 2021, 1,078 workers participated in a web-based questionnaire survey. HRPL was measured using the Work Productivity and Activity Impairment Questionnaire, and occupational stress was measured using the Korean Occupational Stress Scale-Short Form. The occupational stress level was divided into tertiles (low, intermediate, and high), and the low occupational stress group was used as the reference group. Using a generalised linear model, differences in labour productivity loss according to the level of occupational stress were tested after adjusting for demographic characteristics such as age, gender, education level, household income, occupation, and underlying medical conditions.

RESULTS

Non-parametric regression analysis of HRPL according to occupational stress showed a direct association between occupational stress and HRPL. A statistically significant difference was observed in HRPL between participants with intermediate and high occupational stress and those with low occupational stress.

CONCLUSIONS

Our results support the hypothesis that high occupational stress is associated with decreased labour productivity.

Summary

Korean summary
직무스트레스가 건강에 미치는 영향은 잘 알려져 있으나, 노동생산성에 대해 분석한 결과는 그동안 부족하였다. 한국 노동자 1078명을 분석한 결과, 직무스트레스가 낮은 군에 비해서 중등도이거나 높은 경우, 결근이나 프리젠티즘과 같은 건강관련 노동생산성 손실이 약 20%p 정도 높은 것으로 분석되었다.

Key Message
As a result of analyzing 1078 Korean workers, it was revealed that health-related labor productivity losses such as absenteeism and presenteeism were about 20%p higher when occupational stress was moderate or high compared to the low occupational stress group.

Citations

Citations to this article as recorded by

Association between work from home and health-related productivity loss among Korean employees
Hyo Jeong Kim, Dong Wook Lee, Jaesung Choi, Yun-Chul Hong, Mo-Yeol Kang
Annals of Occupational and Environmental Medicine.2024;[Epub] CrossRef
The association between salivary IL-6 and poor sleep quality assessed using Apple watches in stressed workers in Japan
Akihiro Koreki, Mitsuhiro Sado, Yasue Mitsukura, Hisateru Tachimori, Anna Kubota, Yoshiaki Kanamori, Manae Uchibori, Shiyori Usune, Akira Ninomiya, Ryutaro Shirahama, Akihiro Fujimoto, Kanako Inabe, Hiroaki Miyata, Masaru Mimura
Scientific Reports.2024;[Epub] CrossRef
The association of emotional labor and workplace violence with health-related productivity loss
Heejoo Ko, Dohwan Kim, Seong-Sik Cho, Dong-Wook Lee, Jaesung Choi, Minseok Kim, Min Young Park, Mo-Yeol Kang
Journal of Occupational Health.2024;[Epub] CrossRef

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