Basic characteristics of the COPD and control groups
| COPD (n=53) | Control (n=50) | ||
|---|---|---|---|
| Age (years) | 68.7 (9.4) | 56.7 (4.1) | |
| Pack years | 50.4 (4.2) | 42.9 (1.9) | |
| %VC | 90.3 (2.8) | 102.0 (1.5) | |
| FEV1/FVC (%) | 44.7 (1.6) | 80.2 (0.6) | |
| %FEV1 | 46.7 (2.3) | 96.4 (1.5) |
All values are mean (SE).
VC = vital capacity; FEV1 = forced expiratory volume in one second; FVC = forced vital capacity.