Patient characteristics at baseline
| Characteristics | All patients | |
| N | 70 | |
| Age (years), mean (SD) | 72.7 (9.4) | |
| Sex, n (%) | Male | 29 (41%) |
| Female | 41 (59%) | |
| FEV1 (litres), mean (SD) | 1.0 (0.4) | |
| FEV1 (% predicted), mean (SD) | 40 (15) | |
| MRC, mean (SD) | 3.4 (0.9) | |
| CAT, mean (SD) | 16.8 (6.0) | |
| Saturation without O2 supplement (%), mean (SD) | 1.0 (0.0) | |
| Long-term oxygen therapy, n (%) | No | 63 (95%) |
| Yes | 3 (5%) | |
| BMI (kg/m2), mean (SD) | 23.5 (4.6) | |
| Smoking status, n (%) | Current | 22 (31%) |
| Former | 45 (64%) | |
| Never | 3 (4%) | |
| Pack-years, mean (SD) | 40.6 (16.5) | |
| Leaving the house daily | No | 25 (38%) |
| Yes | 41 (62%) | |
| ISWT (m), median (IQR) | 180.0 (100.0–240.0) | |
| ESWT (s), median (IQR) | 159.0 (119.0–233.5) | |
| ESWT level (pace), median (IQR) | 6.0 (4.0–8.0) | |
BMI, body mass index; CAT, COPD Assessment Test; ESWT, endurance shuttle walk test; ISWT, incremental shuttle walk test; MRC, Medical Research Council dyspnoea scale.