Baseline haemodynamics and six minute walk distance
| Variable | Mean (SD) |
| Distance (m) | 213 (64) |
| Right atrial pressure (mm Hg) | 5 (3) |
| Pulmonary artery pressure (mm Hg) | 48 (12) |
| Paop (mm Hg) | 7 (4) |
| Cardiac index (l/min/m2) | 2.6 (0.8) |
| Pulmonary vascular resistance (Wood units) | 14.0 (7.6) |
| Mixed venous oxygen saturation (%) | 68 (7) |
Paop, pulmonary artery occluded pressure