The Combined Effect of Long Working Hours and Low Job Control on Self-Rated Health: An Interaction Analysis

Seong Sik Cho, Young Su Ju, Domyung Paek, Hyunjoo Kim, Kyunghee Jung-Choi

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Objectives: The aim of this study was to investigate the combined effects of long working hours and low job control on self-rated health. Methods: We analyzed employees' data obtained from the third Korean Working Conditions Survey (KWCS). Multiple survey logistic analysis and postestimation commands were employed to estimate the relative excess risk due to interaction (RERI). Results: The odds ratio (OR) for poor self-rated health was 1.24 [95% confidence interval (95% CI): 1.13 to 1.35] for long working hours, 1.04 (95% CI: 0.97 to 1.13) for low job control, and 1.47 (95% CI: 1.33 to 1.62) for both long working hours and low job control. The RERI was 0.18 (95% CI: 0.02 to 0.34). Conclusion: These results imply that low job control may increase the negative influence of long working hours on self-rated health.

Original languageEnglish
Pages (from-to)475-480
Number of pages6
JournalJournal of Occupational and Environmental Medicine
Volume60
Issue number5
DOIs
StatePublished - 1 May 2018

Keywords

  • Korean Working Conditions Survey
  • job stress
  • working hours

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