Bilirubin metabolism in early life and respiratory health during preschool age: A combined analysis of two independent birth cohorts

Abstract

Bilirubin has antioxidant properties, and elevated levels within the normal range have been associated with improved lung function and decreased risk of asthma in adults, but studies of young children are scarce. Here, we investigate associations between bilirubin in early life and respiratory health endpoints during preschool age in two independent birth cohorts.