Original article

Scand J Work Environ Health 2013;39(5):515-520    pdf full text

doi:10.5271/sjweh.3356

Working hours and depressive symptomatology among full-time employees: Results from the fourth Korean National Health and Nutrition Examination Survey (2007–2009)

by Kim I, Kim H, Lim S, Lee M, Bahk J, June KJ, Kim S, Chang WJ

Objective This study aimed to examine the distribution of working hours and the association between working hours and depressive symptomatology using representative data from a national, population-based survey.

Method Data came from the fourth Korean National Health and Nutrition Examination Survey (2007–2009), which employed a systematic, stratified cluster-sampling method. We used logistic regression procedures to estimate the importance of weekly working hours as a predictor of depressive symptomatology.

Results The prevalence of depressive symptomatology was 10.2%. The work week, which averaged 48.3 hours for the sample as a whole, was longer for men (49.8 hours) than women (45.3 hours), and 12.1% of respondents were engaged in shift work. In logistic regression analyses, compared to those working <52 hours per week, the odds ratios (OR) of working hours as a predictor of depressive symptomatology were 1.19 [95% confidence interval (95% CI) 0.77–1.85] for those working 52–59 hours per week and 1.62 (95% CI 1.20–2.18) for those working ≥60 hours per week, after adjustment for demographic characteristics, health behaviors, socioeconomic status, employment status, and work schedules. It showed a positive dose–response relationship between working hours and depressive symptomatology (P=0.0059).

Conclusions Working hours in Korea are long. There is an association between working hours and depressive symptomatology, and there seems be a trend in working hours and depressive symptomatology.

This article refers to the following texts of the Journal: 2003;29(3):171-188  2009;35(5):361-367  2011;37(5):402-410  2012;38(5):418-426
The following article refers to this text: 2016;42(2):135-143