title: [Which controls should be chosen in a case-control study? Survey of bladder cancer in Hérault].
abstract: A case-control investigation about bladder cancer was carried out in Herault department with 219 incident cases from January 1987 to May 1989 and two control groups: 196 hospital controls randomized from hospital admission lists and 794 population controls randomized from census data. According to the comparison for those two groups, there are few socio-demographic differences; but hospital controls are more exposed to smoking, coffee, alcohol, artificial sweetners. So, the odds ratios with those hospital controls are under-estimated. We can evaluate the resulting biais.
authors.affiliation: Département de l'Information Médicale, C.H.U. Lapeyronie, Montpellier, France.
authors.forename: I
authors.initials: I
authors.lastname: Momas
authors.forename: J P
authors.initials: JP
authors.lastname: Daures
authors.forename: F
authors.initials: F
authors.lastname: Gremy
mesh_terms: D000368:Aged; D000428:Alcohol Drinking / Q000009:adverse effects; D002295:Carcinoma, Transitional Cell / Q000453:epidemiology*; D016022:Case-Control Studies; D003069:Coffee / Q000009:adverse effects; D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D003710:Demography; D005602:France; D006801:Humans; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects; D012959:Socioeconomic Factors; D001749:Urinary Bladder Neoplasms / Q000453:epidemiology*
chemical_list: D003069:Coffee
vernacular_title: Quels témoins choisir dans une étude cas-témoins? Enquête sur le cancer vésical dans l'Hérault.