Demographical data and baseline spirometry findings of all 55 participants (28 males)
| Mean±SD | Range | |
| Age yrs | 34.9±2.4 | 30–40 |
| Weight kg | 73±15 | 54–138 |
| Height cm | 173±9 | 154–190 |
| FEV1 % pred | 92±11 | 64–120 |
| FEV1/VC % | 75±7 | 54–89 |
FEV1: forced expiratory volume in one second
% pred: % predicted
VC: vital capacity