Multivariate analysis of the prognostic factors
| Variable | Hazard ratio (95% CI) | p value |
|---|---|---|
| Treatment, PT vCT | 0.78 (0.60 to 1.01) | 0.0649 |
| NYHA (class III and IV) | 1.40 (0.98 to 2.00) | 0.0620 |
| Svo 2(/% increase) | 0.97 (0.95 to 0.99) | 0.0077 |
| PVR (/wu increase) | 1.01 (0.99 to 1.04) | 0.3938 |
Multivariate analysis of the prognostic factors where p value is from the likelihood ratio test. The treatment effect does not quite achieve significance overall for the population.
PT, prostaglandin treatment; CT, conventional treatment; Svo 2 (mixed venous oxygen saturation) was a significant predictor; NYHA (New York Heart Association) grade just failed to reach significance; PVR (pulmonary vascular resistance) was not a significant predictor.