Neighborhood disadvantage and the back-to-school epidemic of viral-associated asthma exacerbations.

Background: Rates of viral-associated asthma exacerbations typically increase when children return to school after the summer holiday. The effect of neighborhood disadvantage on this back-to-school increase in viral-associated asthma exacerbations is unknown.

Objective: We aimed to evaluate the effect of neighborhood disadvantage on the back-to-school increase in asthma-related emergency department (ED) visits.