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Original article The Association between occupational stress level and health-related productivity loss among Korean employees
Jonghee Chung2, Jin-Hyo Kim2, Jae Yoon Lee2, Hee Seok Kang2, Dong-wook Lee1orcid , Yun-Chul Hong1orcid , Moyeol Kang2orcid
Epidemiol Health 2022;e2023009
DOI: https://doi.org/10.4178/epih.e2023009 [Accepted]
Published online: December 28, 2022
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1Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
2Catholic University College of Medicine, Seoul, Korea
Corresponding author:  Moyeol Kang,
Email: snaptoon@naver.com
Received: 15 November 2022   • Revised: 17 December 2022   • Accepted: 28 December 2022

Objectives
Occupational stress management is particularly important for successful business operations, given that 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. 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 levels 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 that as occupational stress increased, so did HRPL. A statistically significant difference was observed in the HRPL of the intermediate and high occupational stress level groups compared to that of the low occupational stress level group.
Conclusions
Our results support the hypothesis that high occupational stress is associated with decreased labour productivity.


Epidemiol Health : Epidemiology and Health