Maternal Second-Hand Smoke Exposure in Pregnancy Is Associated With Childhood Asthma Development

Abstract

E Simons, T To, R Moineddin, D Stieb, SD Dell. J Allergy Clin Immunol Pract. 2014;2(2):201–207 The goal of this study was to determine longitudinal associations between maternal secondhand smoke exposure during pregnancy and the development of childhood asthma. This population-based cohort included 5619 seven-year-old children in grades 1 and 2 recruited from a random sample of 283 public schools in the greater Toronto area. Cross-sectional data were collected on demographic characteristics, family history of atopy, smoke exposure, and …