title: Maternal smoking and childhood asthma.
abstract: The role of maternal smoking as a causal factor for the incidence of childhood asthma is still not clearly established. It was investigated among 3- and 4-year-old-child incident cases confirmed by a 6-year follow-up (n = 294) and cases who no longer had symptoms after diagnosis (n = 110). The study took place in Montréal, Canada, between 1988 and 1997. Persistent and transient cases were compared with their respective controls from the original case-control study of incidence. The odds ratio for heavy maternal smoking adjusted for known risk factors for asthma was 3.84 (95% confidence interval: 1.68, 8.76) among persistent cases and close to one among transient cases.
authors.affiliation: Department of Epidemiology and Biostatistics McGill University, Montréal, PQ, Canada.
authors.forename: C
authors.initials: C
authors.lastname: Infante-Rivard
authors.forename: D
authors.initials: D
authors.lastname: Gautrin
authors.forename: J L
authors.initials: JL
authors.lastname: Malo
authors.forename: S
authors.initials: S
authors.lastname: Suissa
mesh_terms: D001249:Asthma / Q000453:epidemiology*; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016015:Logistic Models; D018811:Maternal Exposure; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D014028:Tobacco Smoke Pollution