Outcome measurements in the study population
| Total COPDSS | 10.1±5.54 |
| HRQoL | |
| EuroQOL-5D index | 0.64±0.23 |
| EuroQOL VAS score | 55.81±16.83 |
| Comorbidity | |
| Charlson comorbidity index score | 1.73±1.64 |
| Activity | |
| Walking time h·day−1 | 1.27±1.01 |
| LCADL score | |
| Total | 21.55±13.03 |
| Self-care | 6.35±3.59 |
| Domestic | 6.37±1.75 |
| Physical | 4.56±2.25 |
| Leisure | 4.29±2.25 |
Data are presented as mean±sd. COPDSS: chronic obstructive pulmonary disease severity score; HRQoL: health-related quality of life; EuroQOL-5D: European quality of life (EuroQOL) five-dimension; VAS: visual analogue scale; LCADL: London Chest Activity of Daily Living.