Shift, Shift Change, and Risk of Death from Heart-Disease at Work

Details

• Personal Author:
  Fine, Lawrence J. ; Steenland WK
• Description:
  Some epidemiologic studies suggest rotating shift workers are at increased risk of cardiovascular disease, but there are no studies on the effect of shift for workers who do not rotate. Workers on late shifts may suffer from disrupted sleep cycles and disruption of circadian patterns of heart rate or blood pressure, or increased psychosocial stress. To determine whether current shift or recent change in shift was a risk factor for heart disease, we conducted a nested case-control study of heart disease death at work within a cohort of 21,000 men working at heavy equipment plants. We identified 163 men who died of ischemic heart disease at work, and compared them to 781 controls who were working at the same age but did not die. Plant records were used to determine time on current shift. At the time of case death, 72% of subjects were working on first shift, 22% on second, and 6% on third. The average time on shift without shift change was 9 years. There was little evidence of any difference in heart disease risk by current shift. There was some indication that recent shifting from afternoon or night shift to day shift had a protective effect initially, which wore off over time. However, no corresponding negative effect was found for a change from first to second/third shift, regardless of when the shift took place. Our analyses were limited by the small number of workers on the third shift, and lack of control over baseline cardiovascular risk factors. [Description provided by NIOSH]
• Subjects:
  Cardiovascular Diseases Cardiovascular System Circadian Rhythm Environmental Monitoring Epidemiology Occupational Exposure Occupational Health Respiratory System Respiratory Tract Diseases Risk Assessment Safety Shift Work Schedule Sleep Sleep Initiation And Maintenance Disorders Workplace

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• Keywords:
  Biological-effects Biological-monitoring Cardiopulmonary-function Cardiopulmonary-system-disorders Cardiovascular-system Cardiovascular-system-disease Cardiovascular-system-disorders Circadian-rhythms Exposure-assessment Occupational-hazards Occupational-health Risk-analysis Shift-work Shift-workers Sleep-deprivation Statistical-analysis Work-analysis Work-environment Work-practices Worker-health Workplace-studies

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• ISSN:
  0002-9262
• Document Type:
  Text
• Genre:
  Abstract or Summary
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DSHEFS - Division of Surveillance, Hazard Evaluations, and Field Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  141
• Issue:
  11
• NIOSHTIC Number:
  nn:20035614
• Citation:
  Am J Epidemiol 1995 Jun; 141(11)(Suppl):S18
• Contact Point Address:
  National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, DSHEFS, 4676 Columbia Parkway, Cincinnati, OH 45226
• Federal Fiscal Year:
  1995
• Peer Reviewed:
  False
• Source Full Name:
  American Journal of Epidemiology. Abstracts of the 28th Annual Meeting of the Society for Epidemiologic Research, Snowbird, Utah, June 21-24, 1995
• Supplement:
  Suppl
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c22774af182fbebed42a55adf83a72ac743b8f614702a342241cbea49dd7f8a9d7190b46c7079dfa201be993205c341a95efae1bbb7cfd121e79017cdbbccf37
• Download URL:
  https://stacks.cdc.gov/view/cdc/187413/cdc_187413_DS1.pdf
• File Type:
  [PDF - 297.03 KB ]