Table 1.
Baseline characteristics (n = 115 patients).
| Male patients, % | 45 |
|---|---|
| Age (years), mean (SD) | 74 (9) |
| FEV1% pred, mean (SD) | 43 (18) |
| Current smokers, % | 17 |
| PaO2 (mmHg) mean (SD) | 50 (5) |
| PaCO2 (mmHg) mean (SD) | 48 (10) |
| Living in a seniors’ residence, % | 27 |
| Living alone, % | 37 |
| Use of ambulatory oxygen, % | 38 |
| Anxiety, % | 23 |
| Depression, % | 11 |
| Charlson score, mean (SD) | 5.6 (2.1) |
SD: standard deviation; FEV1: forced expiratory volume in 1 second; PaO2: arterial partial pressure of oxygen; PaCO2: arterial partial pressure of carbon dioxide.