Table 1.
Patient demographics and baseline disease characteristics (n=131)
| Characteristic | Value |
|---|---|
| Mean age, years (SD) | 71.6 (6.6) |
| Sex, male (%) | 112 (85.5) |
| Mean body mass index, kg/m2 (SD) | 21.7 (4.0) |
| Mean duration of COPD, years (SD) | 5.5 (4.6) |
| Smoker status, n (%) | |
| Current | 22 (16.8) |
| Ex-smoker | 109 (83.2) |
| Pulmonary function data (post bronchodilator), mean (SD) | |
| IC (L) | 1.81 (0.52) |
| FEV1 (L) | 1.22 (0.41) |
| FEV1 (% predicted) | 52.57 (15.00) |
| FVC (L) | 2.96 (0.71) |
| FEV1/FVC (%), mean (SD) | 41.70 (10.74) |
| FEV1 category, n (%) | |
| GOLD grade II (50% to <80%) | 73 (55.7) |
| GOLD grade III (30% to <50%) | 46 (35.1) |
| GOLD grade IV (<30%) | 12 (9.2) |
| mMRC dyspnea score, mean (SD) | 1.9 (0.8) |
| Mean daily physical activity duration (mins), mean (SD)a | |
| Duration of 1.0–1.5 METs | 408.4 (90.0) |
| Duration of ≥2.0 METs | 177.3 (64.4) |
| Duration of ≥3.0 METs | 44.2 (24.7) |
Note: aMeasured over 14 days prior to baseline.
Abbreviations: IC, inspiratory capacity; METs, metabolic equivalents.