Shift work and 20-year incidence of acute myocardial infarction: results from the Kuopio Ischemic Heart Disease Risk Factor Study

Details

• Personal Author:
  Arah OA ; Kauhanen J ; Krause N ; Wang A
• Description:
  Objectives: It remains unclear whether different types of shift work impose similar risks for cardiovascular events in middle-aged workers, especially those with pre-existing ischaemic heart disease (IHD). This study investigated the relations between different shift types and incident acute myocardial infarction (AMI) among men with and without pre-existing IHD, respectively. Methods: We analysed data on 1891 men, aged 42-60 years at baseline, in the prospective Kuopio Ischemic Heart Disease Risk Factor Study cohort, using Cox proportional hazard models with adjustment for demographic, biological, behavioural and psychosocial job factors. We evaluated the associations of baseline shift work with 20-year incidence of AMI, and their modification by pre-existing IHD, using both stratified analysis and models with product terms between shift work and IHD. Results: Travelling work (at least 3 nights per week away from home) was strongly positively associated with AMI among men with IHD (HR=2.45, 95% CI 1. 08 to 5.59) but not among men without (HR=0.93, 95% CI 0.43 to 2.00). No clear associations were found between other types of shift work and AMI for both men with and without IHD. On both additive and multiplicative scales, baseline IHD status positively modified the association of travelling work with AMI (relative excess risk for interaction=3.23, 95% CI -0.50 to 6.97, p for multiplicative interaction=0.044). Conclusions: We found mixed results for the associations between different types of shift work and AMI among those with and without pre-existing IHD. Future research should investigate these associations and effect modification for a broad spectrum of work schedules. [Description provided by NIOSH]
• Subjects:
  Aging Behavior Cardiovascular Diseases Cardiovascular System Demography Mental Health Occupational Health Safety Shift Work Schedule
• Keywords:
  Age Groups Cardiovascular System Disorders Demographic Characteristics Heart Disease Myocardial Disorders Psychological Factors Psychology Shift Work
• ISSN:
  1351-0711
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  73
• Issue:
  9
• NIOSHTIC Number:
  nn:20047813
• Citation:
  Occup Environ Med 2016 Sep; 73(9):588-594
• Contact Point Address:
  Dr Niklas Krause, Department of Environmental Health Sciences and Department of Epidemiology, Fielding School of Public Health, UCLA, Box 95-1772; 56-071 CHS, 650 Charles E. Young Drive South, Los Angeles, CA 90095-1772, USA
• Email:
  niklaskrause@ucla.edu
• Federal Fiscal Year:
  2016
• Performing Organization:
  University of California Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Occupational and Environmental Medicine
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8035e9d7695d43c282116d89b04a176b1cfa8de299d24cc18b5e415df47e94883d8b1d6bc810d72dfd13ee1a251a6936c653c5d2fef92d371e0d97eeda67d66c
• Download URL:
  https://stacks.cdc.gov/view/cdc/202784/cdc_202784_DS1.pdf
• File Type:
  [PDF - 318.66 KB ]