Table 2.
Pulmonary function at the baseline visit and one-year visit
| Pulmonary function | Baseline | Year 1 |
|---|---|---|
| Pre-bronchodilator FEV1 % predicted | 56.71 (13.1) | 57.49 (13.2) |
| Post-bronchodilator FEV % predicted | 64.09 (14.2) | 63.63 (14.9) |
| Rawa (kPa.sec) | 0.46 (0.4–0.5) | 0.47 (0.4–0.5) |
| sGawa (kPa.sec) | 0.46 (0.4–0.5) | 0.47 (0.4–0.5) |
| FRC (% predicted) | 132.02 (29.0) | 128.17 (30.5) |
| IC (L) | 2.33 (0.6) | 2.40 (0.6) |
| TLC % predicted | 106.44 (16.2) | 103.11 (15.2) |
| RV % predicted | 147.27 (35.8) | 131.16 (41.3) |
| KCO % predicted | 89.49 (25.1) | 89.08 (24.8) |
Abbreviations: CI, confidence interval; FEV1, forced expiratory volume in one second; FRC, functional residual capacity; IC, inspiratory capacity; KCO, carbon monoxide diffusion factor; Raw, airways resistance; RV, residual volume; SD, standard deviation; sGaw, specific airways conductance; TLC, total lung capacity.
Notes: Lung function measurements were standardized for age and gender. There were no patients on oral corticosteroids. Results presented as mean (SD) or geometric mean (95% CI).