Subject demographics and standard lung function measurements
| All subjects | Controls | Asthmatics | |
| Subjects n | 29 | 20 | 9 |
| Males/females n | 12/17 | 8/12 | 4/5 |
| Age years | 37±12 | 36±12 | 37±13 |
| Height cm | 172±12 | 174±12.5 | 168±10 |
| BMI kg·m−2 | 24.1±3.63 | 23.9±3.48 | 24.6±4.10 |
| Smoking history pack-years | 2.5±3.2 | 2.75±3.31 | 0.70±0.00 |
| FEV1 L | 3.66±0.93 | 3.75±0.93 | 3.47±0.95 |
| FVC L | 4.75±1.17 | 4.77±1.16 | 4.71±1.25 |
| FEV1/FVC | 0.77±0.06 | 0.79±0.05 | 0.74±0.08 |
| TLC L | 6.51±1.38 | 6.55±1.41 | 6.42±1.41 |
| FRCpleth L | 3.44±0.77 | 3.49±0.78 | 3.34±0.80 |
Data presented as mean±sd unless otherwise stated. BMI: body mass index; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; TLC: total lung capacity; FRCpleth: functional residual capacity measured using body plethysmography.