Demographic data, lung function, and resting haemodynamics of patients with COPD and normal controls
| COPD | Normal | |
|---|---|---|
| Rest refers to sitting at rest. Normal individuals had normal lung function. All values are mean (SD). | ||
| PVR=pulmonary vascular resistance (Wood's units); PAP=pulmonary artery pressure; FEV1=forced expiratory volume in 1 second; FVC=forced vital capacity; Spo2=oxygen saturation; laboratory=mean (SD) PAP measured supine in the cardiac catheterisation laboratory. | ||
| Age | 62 (3.9) | 60 (11.4) |
| PAP (laboratory) | 44.4 (5.5) | 16.2 (4.3) |
| PVR | 5.5 (1.8) | 1.6 (0.6) |
| PAP (mm Hg) | ||
| Mean total | 50 (5.0) | 13.8 (6.0) |
| Rest | 55.9 (10.2) | 14.8 (3.8) |
| FEV1 (l) | 0.99 (0.3) | |
| FVC (l) | 2.24 (0.9) | |
| Spo2 (% on air) | 79 (3.4) | |