Analytical epidemiological studies of occupational injuries reported since 1970 were reviewed, and their methodological strengths and limitations were identified. Of the 117 studies identified, there were 67 cohort studies, 21 cross sectional studies, 17 case/control studies, four quasiexperimental studies, and eight studies of some other type. Manufacturing was the most studied industry group, followed by transportation, mining, and the military. Studies from some high risk industries, such as logging, farming, construction, and fishing, were notably lacking. A large number of risk factors were identified, which fit the general categories of human, job content, and environment. There were significant methodological problems in 85 of the 117 studies. There were few well controlled analytical studies. The authors conclude that future studies need to be better designed to address the issues of how job design and physical, psychosocial, and organizational environments influence the risk of injury.
NIOSH-Author; Occupational-accidents; Traumatic-injuries; Epidemiology; Risk-factors; Workplace-studies; Accident-analysis; Industrial-factory-workers; Transportation-industry; Mining-industry; Military-personnel;
Author Keywords: analytical epidemiology; occupational injury; occupational safety; injuries; accidents
M. A. Veazie, Division of Safety Research, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505