Comparison of patients dying within 12 months with those surviving at 12 months
| Death within 12 months | Survival at 12 months | p Value* | |
| mPAP (mm Hg) | 39.0 (14.1) | 31.7 (10.4) | 0.03 |
| PVR (WU) | 9.4 (5.8) | 4.6 (2.8) | <0.001 |
| PVR index (WU/m2) | 16.4 (9.7) | 8.5 (4.8) | <0.001 |
| mLAP (mm Hg) | 12.2 (6.4) | 9.5 (5.0) | 0.11 |
| Cardiac output (l/min) | 3.8 (1.3) | 4.4 (1.1) | 0.06 |
| PAT (ms) | 69.4 (21.2) | 99.5 (28.1) | 0.005 |
| Pao2 (kPa) | 7.4 (1.4) | 8.8 (2.3) | 0.03 |
Values are mean (SD).
*Student t test.
mLAP, mean left atrial pressure; mPAP, mean pulmonary artery pressure; Pao2, arterial oxygen tension; PAT, pulmonary acceleration time; PVR, pulmonary vascular resistance; WU, Wood units.