Methods
This multicenter, cross-sectional study included 286 adolescents born
between 2003 and 2005 (mean age: 14.2 years); among them, 184 and 102
were born extremely preterm (EP) (< 28 weeks’ gestation) and
moderate-late preterm (32 to < 37 weeks’ gestation),
respectively. Among EP adolescents, 92 had BPD, and 92 did not. All
participants underwent lung function tests, skin prick testing, and
questionnaires on asthma symptoms and quality of life.