Nonelective cesarean section is associated with the prevalence of asthma among Mexican children who attended childcare centers.

Background: The cesarean section (CS) mode of delivery can influence the prevalence of bronchial asthma (BA), allergic rhinitis (AR), or atopic dermatitis (AD) by promoting modifications in the infantile microbiome.

Objective: To analyze the prevalence of asthma in children who were born through CS and attended childcare centers.

Methods: The data were obtained through an online survey that was answered anonymously by one of the parents; the survey inquired about the route of delivery of the child and the prevalence of BA, AR, and AD.