Baseline demographics and characteristics.
| BT registry | AIR2 trial | AIR trial | |
| Mean age (years) | 44.3 ± 11.5 (n=21) Range 23-69 | 40.7 ± 11.9 (BT) 40.6 ± 11.9 (C) | 40.0 ± 11.2 (BT) 40.8 ± 12.1 (C) |
| % female | 57 | 59 | 57 |
| Pre-bronchodilator FEV1 (% of predicted) | 70.25 ± 23.5 (n=16) range: 22-105 | 77.8 ± 15.7 (BT) 79.7 ± 15.1 (C) | 72.5 ± 10.9 (BT) 74.9 ± 8.9 (C) |
| AQLQ score | 4.17 ± 1.2 (n=14) range 2.44 - 6.31 | 4.30 ± 1.17 (BT) 4.32 ± 1.21 (C) | 5.6 ± 0.9 (BT) 5.6 ± 0.9 (C) |