TABLE 1

Subject characteristics

Sex n (%)
 Female19 (83)
 Male4 (17)
Age years median (range)23 (15–45)
Body mass index kg·m−221.1 (4.6)
FEV1 L3.50 (1.2)
FEV1 % pred98.7 (25)
FVC L4.30 (1.2)
FVC % pred103.3 (26.1)

Data are presented as median (interquartile range), unless otherwise stated. FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity.