Caesarean section and children’s health: A quasi-experimental design

The prevalence of inflammatory child health conditions—such as asthma, eczema, and food allergy—and their associated costs have increased rapidly over the last 30 years. While environmental factors likely underpin these increases, recent studies explain only a fraction of the trend and rely on associational methods. Caesarean (or C-) section rates increased dramatically in the period of interest, and this method of delivery is an understudied...