Background Studies of asthma phenotypes have identified obesity as a component of a
group characterized by a high proportion of subjects with adult-onset asthma. However,
whether age of asthma onset modifies the association between obesity and asthma is
unknown. Objectives We sought to compare the associations between body mass index
(BMI) categories with physiological, inflammatory, and clinical parameters across age of
asthma onset phenotypes; and to compare the rate of BMI change in relation to asthma …