Table 1.
Patient demographics (n = 41)
| Age | 71.4 ± 7.1 |
| Sex (male:female) | 39:2 |
| Height (cm) | 163.0 ± 6.8 |
| Weight (kg) | 59.1 ± 9.0 |
| Smoking status (current:former) | 8:33 |
| Pack‐years | 62.0 ± 34.7 |
| FEV1 (ml) | 1,345 ± 476 |
| FEV1 (% predicted) | 51.0 ± 16.8 |
| FEV1/FVC (%) | 44.3 ± 11.6 |
| FRC (% predicted) | 107.7 ± 17.5 |
| RV/TLC (%) | 44.7 ± 9.8 |
| DLCO (% predicted) | 49.2 ± 18.7 |
| LAV% (%) | 31.4 ± 8.7 |
Data are expressed as the mean ± SD.
Abbreviations: DLCO, diffusion capacity of the lung for carbon monoxide; FEV1, forced expiratory volume in 1 s; FRC, functional residual capacity; FVC, forced vital capacity; LAV%, percent low attenuation area less than −950 Hounsfield units (HU) on CT; RV/TLC, residual volume/total lung capacity.