Brooks Pierce1. 1. U.S. Department of Labor, Bureau of Labor Statistics, Washington, DC.
Abstract
BACKGROUND: Relatively little is known about seasonal patterns in occupational injury risk. Injury risk may vary seasonally due to weather-related factors or changing work exposure. Employer confusion about recordkeeping rules and injury occurrence near year end may also lead to an undercount of year-end injuries. METHODS: Case records from the Bureau of Labor Statistics' Survey of Occupational Injuries and Illnesses and Census of Fatal Occupational Injuries were used to determine seasonality for a variety of injury types. RESULTS: Reported injury rates were higher in summer and lower at year end. Difficult-to-identify injuries showed greater year-end incidence declines. CONCLUSIONS: End-of-year injury declines may have reflected reporting errors for some injury types. The summertime increase in injury risk was broad-based and presumably reflected real seasonal factors.
BACKGROUND: Relatively little is known about seasonal patterns in occupational injury risk. Injury risk may vary seasonally due to weather-related factors or changing work exposure. Employer confusion about recordkeeping rules and injury occurrence near year end may also lead to an undercount of year-end injuries. METHODS: Case records from the Bureau of Labor Statistics' Survey of Occupational Injuries and Illnesses and Census of Fatal Occupational Injuries were used to determine seasonality for a variety of injury types. RESULTS: Reported injury rates were higher in summer and lower at year end. Difficult-to-identify injuries showed greater year-end incidence declines. CONCLUSIONS: End-of-year injury declines may have reflected reporting errors for some injury types. The summertime increase in injury risk was broad-based and presumably reflected real seasonal factors.