Affiliation: | 1. Centers for Disease Control and Prevention (CDC)‐National Institute for Occupational Safety and Health (NIOSH), Economic Research and Support Office (ERSO), Washington, District of Columbia;2. Centers for Disease Control and Prevention (CDC)‐National Institute for Occupational Safety and Health (NIOSH), Economic Research and Support Office (ERSO), Cincinnati, Ohio;3. Northern Kentucky University, Highland Heights, KY |