To evaluate the effects of environmental tobacco smoke (ETS) on perinatal outcomes.
Retrospective cohort study.
Newfoundland and Labrador, Canada.
Nonsmoking women with singleton gestations who delivered 1 April 2001-31 March 2009, identified through the Newfoundland and Labrador Provincial Perinatal Database.
Women who self-reported exposure to ETS were compared with those who reported no exposure. Univariate analyses and multivariate linear and logistic regression analyses (adjusting for maternal age, parity, partnered status, work status, level of education, body mass index, alcohol use, illicit drug use and gestational age) were performed and odds ratios(OR; or adjusted differences) with 95% confidence intervals were calculated.
Birthweight, birth length, head circumference and stillbirth. Secondary outcomes included gestational age at delivery, preterm birth
Notes
Comment In: Evid Based Nurs. 2012 Apr;15(2):50-122039201