Comparison of changes in pulmonary function and 6 min walk test between patients with CPFE, and those with COPD
| CPFE | COPD | p Value | |
|---|---|---|---|
| Pulmonary function | n=17 | n=42 | |
| ΔFVC, litres | 0.08±0.30 | −0.004±0.34 | 0.366 |
| ΔFEV1, litres | 0.10±0.18 | 0.04±0.13 | 0.151 |
| 6 min walk test | n=15 | n=37 | |
| ΔDistance, m | −16.6±58.4 | 30.2±55.6 | 0.009 |
| ΔSpO2 nadir, % | 1.6±8.2 | 2.0±5.1 | 0.863 |
| ΔBorg scale | −0.9±1.8 | −1.4±2.5 | 0.453 |
COPD, chronic obstructive pulmonary disease; CPFE, combined pulmonary fibrosis and emphysema; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.