Increased rate of lung function decline in Australian adolescents with cystic fibrosis

Abstract

Introduction Though baseline lung function as measured by spirometry in children with cystic fibrosis (CF) has improved, the annual rate of decline has not changed significantly during the critical period of adolescence. The aim of this study was to describe factors associated with longitudinal decline in lung function in a contemporary cohort of children with CF. Methods Best annual lung function data from children attending the CF service of the Royal Children's Hospital Melbourne were reviewed to determine rate of decline in FEV1 up until time of transfer to an adult center. Mixed models were used to determine the influence of age, sex, genotype, newborn screening, respiratory hospitaliza..