J Korean Med Sci.  2017 Jul;32(7):1091-1096. 10.3346/jkms.2017.32.7.1091.

Night Shift Work and Risk of Depression: Meta-analysis of Observational Studies

Affiliations
  • 1Department of Family Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea. threej@hallym.or.kr
  • 2Department of Cancer Control and Policy, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea.
  • 3Molecular Epidemiology Branch, Division of Cancer Epidemiology and Prevention, Research Institute, National Cancer Center, Goyang, Korea.
  • 4Department of Family Medicine and Center for Cancer Prevention and Detection, Hospital, National Cancer Center, Goyang, Korea.

Abstract

This study aimed to assess whether night shift work is associated with the risk of depression by using a meta-analysis of observational studies. We searched PubMed and EMBASE in August, 2016 to locate eligible studies and investigated the association between night shift work and the risk of depression, reporting outcome measures with adjusted odds ratios (ORs) or relative risks (RRs) and 95% confidence intervals (CIs). In the meta-analysis of a total of 11 observational studies with 9 cross-sectional study, 1 longitudinal study, and 1 cohort study, night shift work was significantly associated with an increased risk of depression (OR/RR, 1.43; 95% CI, 1.24-1.64; I² = 78.0%). Also, subgroup meta-analyses by gender, night shift work duration, type of occupation, continent, and type of publication showed that night shift work was consistently associated with the increased risk of depression. The current meta-analysis suggests that night shift work is associated with the increased risk of depression. However, further large prospective cohort studies are needed to confirm this association.

Keyword

Night Shift Work; Depression; Observational Study; Meta-analysis

MeSH Terms

Cohort Studies
Cross-Sectional Studies
Depression*
Longitudinal Studies
Observational Study
Occupations
Odds Ratio
Outcome Assessment (Health Care)
Prospective Studies
Publications

Figure

  • Fig. 1 Flow diagram of identification of relevant studies.

  • Fig. 2 Association between night shift work and the risk of depression in a random-effects model meta-analysis of observational studies (n = 11). OR = odds ratio, RR = relative risk, CI = confidence interval. *Random-Effects Model.

  • Fig. 3 Begg's funnel plots and Egger's test for identifying publication bias in the meta-analysis of observational studies (n = 11). OR = odds ratio, RR = relative risk, SE = standard error.


Cited by  1 articles

Do depression and its associated factors differ in women daytime and shift workers?: an analysis of the Korea National Health and Nutrition Examination Survey 2018
Hyun Ju Chae, Mijong Kim
Korean J Women Health Nurs. 2021;27(2):113-127.    doi: 10.4069/kjwhn.2021.05.17.


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