PURPOSE OF THE STUDY.
To examine the association of breastfeeding and wheezing in the first year of life in a pregnancy cohort, with attention to maternal asthma and infant sex.
The study included 2773 infants born to women enrolled in the Canadian Healthy Infant Longitudinal Development (CHILD) Study, a population-based birth cohort, from 2009 to 2012.
Caregivers reported on infant wheezing and infant feeding via questionnaire at 3, 6, and 12 months of life. Breastfeeding was classified as exclusive, partial, or …