title: [Radioimmunoassay of urinary cotinine: variability of measurements, identification of exposed subjects].
abstract: Urinary cotinine was assessed by a radioimmune assay (RIA) in a random subsample of 63 (out of 285) children aged 5 to 6 from 10 kindergartens in Nancy (N-E France). The result was adjusted for urine concentration by expressing cotinine per mg creatinine. The correlation between two successive determinations was excellent (r = 0.989) and the difference between the two mean values was minimal and non-significant (121.4 +/- 25.9 vs 121.0 +/- 25.0). Expressed in percentage of their mean, the difference between two determinations was on average 8.2%. The urinary cotinine determinations allowed a satisfactory separation of children exposed vs unexposed to parental tobacco smoke.
authors.affiliation: INSERM-U, Vandoeuvre-lès-Nancy, France.
authors.forename: D
authors.initials: D
authors.lastname: Hartemann
authors.forename: D
authors.initials: D
authors.lastname: Teculescu
authors.forename: M P
authors.initials: MP
authors.lastname: Oryszczyn
authors.forename: B
authors.initials: B
authors.lastname: Hannhart
mesh_terms: D002648:Child; D002675:Child, Preschool; D003367:Cotinine / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D011863:Radioimmunoassay; D014028:Tobacco Smoke Pollution
chemical_list: D014028:Tobacco Smoke Pollution; D003367:Cotinine
vernacular_title: Dosage radioimmunologique de la cotinine urinaire: variabilité des mesures, identification des sujets exposés.