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Scand J Work Environ Health 2015;41(4):413-416    pdf full text

doi:10.5271/sjweh.3501

Shift work and mental health sickness absence: a 10-year observational cohort study among male production workers

by Norder G, Roelen CAM, Bültmann U, van der Klink JJL

Objectives Epidemiological studies investigating mental-health-related sickness absence (SA) among shift workers are lacking. This 10-year observational study investigated the risk of mental health SA among shift compared with day workers.

Methods The data of 5826 male production workers were used for analyses: 4288 (74%) shift and 1538 (26%) day workers. The risk of mental health SA was analyzed with Cox regression analysis. Hazard ratios (HR) and 95% confidence intervals (95% CI) were adjusted for age and occupational grade.

Results During a 10-year follow-up, 351 shift workers and 126 day workers had incident mental health SA. The risk of mental health SA did not differ (HR 1.03, 95% CI 0.84–1.26) between shift and day workers. Among shift workers, the risk of SA due to mood disorders (HR 1.87, 95% CI 0.73–4.76) was non-significantly higher than among day workers. A total of 96 shift workers and 21 day workers had recurrent mental health SA. The risk of recurrent mental health SA did not differ (HR 1.04, 95% CI 0.62–1.74) between shift and day workers.

Conclusion The risk of incident and recurrent mental health SA did not differ between shift and day workers.

This article refers to the following texts of the Journal: 2011;37(5):402-410  2010;36(2):81-84  2010;36(2):121-133  2009;35(5):361-367  2006;32(6):502-514  2004;30(2):139-148
The following article refers to this text: 2016;42(4):346-353