Table 1.
Demographic and respiratory functional data of the group
| Patients (n = 40) | |
|---|---|
| Males (%) | 22 (55) |
| Age, yrs | 75.6 ± 7.0 |
| Body mass index, kg/m2 | 29.3 ± 5.2 |
| Current smokers (%) | 14 (35) |
| PaO2, mmHg | 67.4 ± 6.2 |
| PaCO2, mmHg | 43.7 ± 4.6 |
| PH | 7.40 ± 0.02 |
| Awake SaO2, % | 93.3 ± 2.5 |
| FEV1, % predicted | 58.4 ± 13.4 |
| FVC, % predicted | 75.8 ± 10.4 |
| Severity of COPD | |
| GOLD 1, n (%) | 0 |
| GOLD 2, n (%) | 27 (65.5) |
| GOLD 3, n (%) | 10 (25) |
| GOLD 4, n (%) | 3 (7.5) |
| Severity of OSA | |
| Mild, n (%) | 4 (10) |
| Moderate, n (%) | 25 (62.5) |
| Severe, n (%) | 11 (27.5) |
| ESS | 11.6 ± 4.6 |
Data are expressed as mean ± SD. FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; GOLD, Global Initiative for Chronic Obstructive Lung Disease; ESS, Epworth Sleepiness Scale