Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Association between Long Working Hours and Depressive Symptoms among Interns and Residents in South Korea-2014 Korea Interns & Residents Survey

전공의들의 장시간 근무와 우울증상의 연관성에 관한 연구

  • Kim, Ji-Hwan (Department of Public Health Sciences, Graduate School of Korea University) ;
  • Yoon, Jaehong (School of Health Policy and Management, College of Health Science, Korea University) ;
  • Kim, Seung-Sup (Department of Public Health Sciences, Graduate School of Korea University)
  • 김지환 (고려대학교 일반대학원 보건과학과) ;
  • 윤재홍 (고려대학교 보건과학대학 보건정책관리학부) ;
  • 김승섭 (고려대학교 일반대학원 보건과학과)
  • Received : 2015.05.04
  • Accepted : 2015.06.18
  • Published : 2015.06.30
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Abstract

Objectives: This study sought to examine the association between long working hours and depressive symptoms among interns and residents in South Korea. Methods: We analyzed a cross-sectional survey of 1,661 interns and residents from the 2014 Korean Interns & Residents Survey. Total working hours during the preceding week was assessed and classified into five categories(i.e. less than 60 hours, 60-79 hours, 80-99 hours, 100-119 hours, and 120-168 hours). Depressive symptoms during the previous week were measured by using ten items from the Center for Epidemiologic Studies Depression Scale questionnaire. Multivariate negative binomial regression was applied to examine the association between long working hours and depressive symptoms after adjusting for potential confounders, including medical specialty and training year. All analyses were performed using STATA/SE version 13.0. Results: 86%(N=1,429) of interns and residents worked 60 hours or more per week. Compared to the "less than 60 hours" group, long working hours for interns and residents were significantly associated with depressive symptoms: "60-79 hours"(PR: 1.56, 95% CI: 1.05, 2.32), "80-99 hours"(PR: 2.27, 95% CI: 1.54, 3.33), "100-119 hours"(PR: 2.62, 95% CI: 1.76, 3.89), and "120-168 hours"(PR: 3.28, 95% CI: 2.21, 4.86). Conclusions: This study found that long working hours were prevalent among interns and residents in South Korea, and it was associated with depressive symptoms.

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References

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