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Am J Ind Med. 2012 Mar;55(3):217-27. doi: 10.1002/ajim.22007. Epub 2012 Jan 6.

Shift work and the incidence of injury among police officers.

Author information

  • 1Department of Social and Preventive Medicine, School of Public Health and Health Professions, University at Buffalo, The State University of New York, 14260, USA. violanti@buffalo.edu

Abstract

BACKGROUND:

Police officers may be injury prone due to fatigue, erratic work hours, and insufficient sleep. This study explored injury incidence among police officers across shifts.

METHODS:

Day-to-day shift data from computerized payroll records (1994-2010) were available from a mid-sized urban police department (n = 430). Sleep duration, shift activity level, returning to work after days off, and injury incidence over time were also examined.

RESULTS:

Age-adjusted incidence rate ratio (IRR) for injury on the midnight shift was 72% larger than the day shift (IRR = 1.72; 95% CI = 1.26-2.36) and 66% larger than the afternoon shift (IRR = 1.66; 95% CI = 1.23-2.25). Injury incidence for the first day back on the midnight shift was 69% larger than day shift (IRR = 1.69; 95% CI = 1.23-2.32) and 54% larger than the afternoon shift (IRR = 1.54; 95% CI = 1.36-1.76). High activity level combined with midnight shift work put officers at increased injury risk (IRR = 2.31; P = 0.0003). Probability of remaining free of injury was significantly higher for day shift than midnight shift (P < 0.0001).

CONCLUSIONS:

Higher injury risk was associated with night shift work in police officers. Night shift combined with high work activity was strongly associated with injury risk. There was a significantly higher probability of not being injured on day compared to midnight or afternoon shifts.

Copyright © 2012 Wiley Periodicals, Inc.

PMID:
22228219
[PubMed - indexed for MEDLINE]
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