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March 7, 2026Journal of Affective DisordersOpen Access

Work intervals and the prevalence of depressive symptoms among daytime workers: Japan Epidemiology Collaboration on Occupational Health Study

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Authors

CNChihiro NagayamaHMHaruka MiyakeZIZobida Islam

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Overview

This cross-sectional analysis examines the association between work intervals and depressive symptoms in daytime workers, suggesting implications for health interventions.

Key Points

  • This research aims to investigate how work intervals impact depressive symptoms in daytime workers and the role of lifestyle behaviors.
  • Conducted a cross-sectional analysis of 8007 daytime workers
  • Calculated work intervals using self-reported arrival and departure times
  • Assessed depressive symptoms with the 11-item Center for Epidemiological Studies Depression Scale
  • Utilized multilevel robust Poisson regression models to estimate prevalence ratios
  • Performed mediation analysis of five lifestyle factors
  • Shorter work intervals (<11.0 h) were associated with a higher prevalence ratio of depressive symptoms (1.41)
  • Significant lifestyle factors explained over 57% of the association in shorter work intervals
  • The prevalence ratios varied for different work interval categories, showing a trend of increasing depressive symptoms with shorter intervals

Cite This Study

Nagayama et al. (2026) studied this question.

synapsesocial.com/papers/69abc0925af8044f7a4e93f5https://doi.org/10.1016/j.jad.2026.121507
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Also Consider

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  5. 5Association of work environment with stress and depression among Japanese workers2022 · 6 citations