Results
EP adolescents with BPD had significantly lower forced expiratory volume
in 1 s (FEV1), forced vital capacity (FVC),
FEV1/FVC ratio, and forced expiratory flow between
25%–75% of FVC than other included adolescents.
FEV1/FVC ratios were below the lower limit of normal
(z-score < −1.645) in 30.4% of EP adolescents with BPD,
13.0% of EP adolescents without BPD, and 11.8% of adolescents who were
born moderate-late preterm. Bronchodilator response and air-trapping
were significantly higher in BPD adolescents than in other adolescents.
Diffusion capacity was significantly lower in EP adolescents than in
moderate-late preterm adolescents. Asthma symptoms and quality of life
scores were similar among groups.