Cited by 28Sleep and Work-Related FatigueWorkplace Health and Well-beingOccupational Health and Burnout

Examining Exposure Assessment in Shift Work Research: A Study on Depression Among Nurses

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Hall, Amy L, Franche, Renée-Louise, Koehoorn, Mieke·2018·Annals of Work Exposures and Health

Abstract

Introduction: Coarse exposure assessment and assignment is a common issue facing epidemiological studies of shift work. Such measures ignore a number of exposure characteristics that may impact on health, increasing the likelihood of biased effect estimates and masked exposure–response relationships. To demonstrate the impacts of exposure assessment precision in shift work research, this study investigated relationships between work schedule and depression in a large survey of Canadian nurses. Methods: The Canadian 2005 National Survey of the Work and Health of Nurses provided the analytic sample (n = 11450). Relationships between work schedule and depression were assessed using logistic regression models with high, moderate, and low-precision exposure groupings. The high-precision grouping described shift timing and rotation frequency, the moderate-precision grouping described shift timing, and the low-precision grouping described the presence/absence of shift work. Final model estimates were adjusted for the potential confounding effects of demographic and work variables, and bootstrap weights were used to generate sampling variances that accounted for the survey sample design. Results: The high-precision exposure grouping model showed the strongest relationships between work schedule and depression, with increased odds ratios [ORs] for rapidly rotating (OR = 1.51, 95% confidence interval [CI] = 0.91–2.51) and undefined rotating (OR = 1.67, 95% CI = 0.92–3.02) shift workers, and a decreased OR for depression in slow rotating (OR = 0.79, 95% CI = 0.57–1.08) shift workers. For the low- and moderate-precision exposure grouping models, weak relationships were observed for all work schedule categories (OR range 0.95 to 0.99). Conclusions: Findings from this study support the need to consider and collect the data required for precise and conceptually driven exposure assessment and assignment in future studies of shift work and health. Further research into the effects of shift rotation frequency on depression is also recommended.

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  • A large study of 11,450 Canadian nurses found that the strongest relationship between work schedule and depression was in those who work rapidly rotating schedules and undefined rotating schedules, as opposed to slowly rotating schedules.

    “A large study of 11,450 Canadian nurses found that the strongest relationship between work schedule and depression was in those who work rapidly rotating schedules and undefined rotating schedules (as opposed to slowly rotating schedules)228.”

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  1. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Third Edition, Text Revision (DSM-III-R). Washington DC, USA: American Psychiatric Association; 1987.
  2. Gilmour H, Patten SB. (2007) Depression and work impair- ment. Health Rep; 18: 9-22.
  3. Kleim G, Belanger Y. (2007) Using bootstrap variance calcu- lations for a survey with a simple design: the case of the 2005 National Survey of the Work and Health of Nurses. In Presented at the Joint Statistical Meetings, Section on Survey Research Methods, August 2007. Salt Lake City, Utah; p. 3301-7. Available from https://pdfs.semanticscholar.org/ f3d5/3d39e78f59e8b6a008fb1b482ef720a486f0.pdf

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Authors
Hall, A. L., Franche, R.-L., & Koehoorn, M.
Affiliations
University of British Columbia (CA)
Corresponding author
Hall, Amy L
Venue
Annals of Work Exposures and Health
Published
2018-01-11
Volume
62
Issue
2
Pages
182-194
ISSN
  • 2398-7308 (ISSN-L)
  • 2398-7316
OpenAlex
W2783698990
Cited by
28
References
59
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 5 · 2022: 4 · 2021: 5 · 2020: 6 · 2019: 2 · 2018: 1
FWCI
3.18
Type
journal article
Language
en
Open access
Locations
  • Annals of Work Exposures and Health (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Health Sciences › Health Professions › General Health Professions › Workplace Health and Well-being
  • Health Sciences › Health Professions › Occupational Therapy › Occupational Health and Burnout
Keywords
shift work, exposure assessment, exposure misclassification, nurses, depression, shift timing, work schedules, exposure-response relationship, occupational health
MeSH terms
Shift Work Schedule, Adult, Canada, Depressive Disorder, Female, Humans, Male, Middle Aged, Nurses, Logistic Models, Odds Ratio, Occupational Exposure

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