title: [Incidence of cancer in the chemical industry: methodological aspects of a longitudinal study].
abstract: A current cohort study aims at estimating the relative risk of incidence of cancer for the personnel of several chemical compagnies in Geneva. The paper discusses some methodological problems encountered, especially with regard to the healthy worker effect.
mesh_terms: D002617:Chemical Industry; D006801:Humans; D008137:Longitudinal Studies; D009369:Neoplasms / Q000453:epidemiology*; D009787:Occupational Medicine
vernacular_title: Incidence du cancer dans l'industrie chimique: aspects méthodologiques d'une étude longitudinale.