Record Display for the EPA National Library Catalog


Main Title Limited Occupational Mortality Data and Statistics.
Author Symons, M. J. ; Doerfler, D. L. ; Yuan, Y. C. ;
CORP Author North Carolina Univ. at Chapel Hill. School of Public Health.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1985
Report Number EPA/600/D-86/111;
Stock Number PB86-213535
Additional Subjects Mortality ; Personnel ; Epidemiology ; Hazards ; Statistical data ; Occupational surveys
Library Call Number Additional Info Location Last
NTIS  PB86-213535 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 27p
From principles of survival analysis statistical approaches are identified for a major problem with occupational mortality studies when few deaths, as with cause specific mortality, and no exposure data on the individuals are available. Specifically, this limitation is the general inadequacy of a geographic population as a comparison group for employed populations. Qualitative aspects of the so-called healthy worker effect are briefly presented, while the essential features of statistical strategies for part of this issue are sketched in detail. Although the occupation epidemiology literature focuses on selection bias as the source of the problems with the standardized mortality ratio, the potential inadequacy of the proportional hazards model for occupational mortality evaluations is emphasized here.