Numerator
Number of work-related injury deaths among workers aged 16 years and older in the transportation and warehousing industry (North American Industry Classification System (NAICS) 2002 codes 48-49)
Denominator
Average annual hours at work for workers aged 16 years and older in the transportation and warehousing industry (NAICS 2002 codes 48-49)
Methodology
CFOI uses multiple data sources, including death certificates, workers' compensation reports, reports to various regulatory agencies, police reports, medical examiner records, as well as newspaper reports, to identify and verify work-related fatalities. Beginning with data for 2008, CFOI applied a new rate methodology, changing the denominator from employment-based to hours-based. CFOI uses hours worked data from the Current Population Survey (CPS), a monthly household survey that collects data on the employment status of the civilian, non-institutionalized population aged 16 years and older. Hours-based rates use the average number of employees at work and the average hours each employee works. For consistency with the CPS data, workers under the age of 16, volunteers, and military personnel are excluded in the CFOI counts used to calculate rates. Information on the type of industry is converted to North American Industry Classification System (NAICS) codes.