Characteristics of patients and controls contributing surgical resection material
| COPD patients | Non-COPD controls | |
| Subjects (n) | 8 | 8 |
| Women (%) | 62.5 | 62.5 |
| Age (years) | 55.4±5.7 | 59.4±7.8 |
| FEV1%pred | 35.0±24.8 | 85.5±16.3 |
| FEV1/FVC ratio (%) | 36.6±8.8 | 86.4±17.1 |
| Ex/no smokers | 8/0 | 4/4 |
| Pack-years | 35.0±24.8 | 12.2±14.0 |
Number, average values and SDs are shown.
FEV1%, forced expiratory volume in 1 s (% predicted); FVC, forced vital capacity.