Associations Between Shiftwork and 25-Hydroxy Vitamin D3 Levels Among Police Officers

Details

• Personal Author:
  Andrew, Michael E. ; Charles LE ; Fekedulegn D ; Gu JK ; Mnatsakanova A ; Tinney-Zara CA ; Violanti JM
• Description:
  Purpose: Policing is an occupation that requires shift work. Individuals working at night may develop vitamin D deficiency, which may lead to various health problems. The aims of this cross-sectional study were to examine the association between shiftwork and 25-hydroxy vitamin D3 (25(OH)D3) levels among police officers and to assess whether seasons modified this relationship. Methods: Participants were 222 police officers from the Buffalo Cardio-Metabolic Occupational Police Stress study (2011-2014). Shiftwork data were obtained from City of Buffalo, NY daily payroll records. Officers were assigned a dominant shift (day, afternoon, or night) based on the shift in which they worked the highest percentage of hours. The shift worked during the past month was used. 25(OH)D3 was measured by a liquid-phase radioimmunoassay technique. Analysis of variance/covariance were used to examine the mean levels of 25(OH)D3 across two categories of shiftwork, day and afternoon/night. Seasons specific to the Buffalo, NY climate were defined as Summer (June-August), Fall (September-October), Winter (November through March), and Spring (April-May). Results: The mean age of officers was 46 years, 28% were female, 52% worked day and 9% worked the night shift. Associations were adjusted for age, sex, race/ethnicity, and multivitamin intake. Mean levels of 25(OH)D3 did not differ significantly across shifts before stratification by seasons. However, after stratification, levels of 25(OH)D3 were significantly higher among officers on the afternoon/night shift compared to those on the day shift (Mean[SE]: 28.5[2.3] vs. 21.8[1.8], respectively, p=0.033) for Spring only. During winter, 25(OH)D3 levels were higher among day shift officers compared to afternoon/night shift officers (Mean[SE]: 28.8[1.4] vs. 25.0[1.6], respectively, p=0.083). No significant associations were observed during the other seasons. Conclusion: Results suggest that 25(OH)D3 levels differed significantly by shiftwork status only during the Spring. Future research may investigate the structural or, biological correlates which may explain these findings. [Description provided by NIOSH]
• Subjects:
  Law Enforcement Occupational Health Safety Shift Work Schedule
• Keywords:
  Biological Effects Cross Sectional Studies Law Enforcement Workers Police Officers Seasonal Factors Shift Work Vitamins
• ISSN:
  1047-2797
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Abstract or Summary
• Place as Subject:
  New York ; OSHA Region 2 ; OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  27
• Issue:
  8
• NIOSHTIC Number:
  nn:20064622
• Citation:
  Ann Epidemiol 2017 Aug; 27(8):528
• CAS Registry Number:
  Vitamin D (CAS RN 1406-16-2)
• Federal Fiscal Year:
  2017
• NORA Priority Area:
  Public Safety
• Performing Organization:
  State University of New York at Buffalo
• Peer Reviewed:
  False
• Start Date:
  20150901
• Source Full Name:
  Annals of Epidemiology
• End Date:
  20190831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6c2bc8d1b39c1dd1f080c4cbcc19f91e6855a841a0db0af127f521667359a884976cfbde2a95ba35f9212c46d711b37acb9a04c86e527fdaf6f03582583c6e74
• Download URL:
  https://stacks.cdc.gov/view/cdc/223053/cdc_223053_DS1.pdf
• File Type:
  [PDF - 133.79 KB ]