| Mean (SD) | Range | |
| Age (years) | 65 (8) | 36–82 |
| Sex (M/F) | 99/69 | |
| BMI (kg/m2) | 27.2 (5.5) | 16.2–43.6 |
| Pack*years | 61 (30) | 2–168 |
| FEV1 (l) | 1.11 (0.40) | 0.43–2.52 |
| FEV1 (% predicted) | 45 (15) | 16–83 |
| FVC (l) | 2.43 (0.81) | 1.02–5.94 |
| FVC (% predicted) | 84 (21) | 27–193 |
| FEV1/FVC | 0.43 (0.13) | 0.17–0.76 |
| Peak V̇o2 (ml/kg/min) | 12.8 (4.3) | 3.4–25.6 |
| Peak V̇o2 (% predicted) | 69 (47) | 13–447 |
| Peak work capacity (W) | 68 (30) | 0–190 |
| Peak work capacity (% predicted) | 64 (37) | 0–298 |
| SGRQ Symptoms | 52.4 (22.0) | 6.0–100 |
| SGRQ Activity | 65.1 (18.7) | 5.6–100 |
| SGRQ Impact | 33.1 (17.2) | 0–76.4 |
| SGRQ Total | 46.0 (15.8) | 12.7–83.2 |
BMI, body mass index; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; V̇o2, oxygen consumption; SGRQ, St George Respiratory Questionnaire.