Predictors of perioperative mortality
| Variable (reference) | Univariate OR | p-value | Multiple OR | p-value |
| Age (≤median (58.9 yrs)) | 1.00 (0.50–2.00) | >0.99 | ||
| Sex (female) | 1.080 (0.53–2.18) | 0.84 | ||
| Ethnicity (white) | 4.69 (1.75–12.55) | 0.002 | ||
| Symptom duration | ||||
| < 24 months | 1.85 (0.84–4.04) | 0.12 | ||
| >24months | Reference | |||
| WHO class (I/II) | 1.15 (0.38–3.54) | 0.81 | ||
| P̄ra (≤median (8.5 mmHg)) | 1.71 (0.83–3.54) | 0.15 | ||
| P̄pa (≤median (48.0 mmHg)) | 1.12 (0.55–2.25) | 0.76 | ||
| CI (≤median (1.90 L·min−1·m−2)) | 0.37 (0.17–0.83) | 0.015 | ||
| TPR (≤median (1000 dyn·s·cm−5)) | 2.42 (1.15–5.11) | 0.020 | ||
| SV,O2 (≤median (62.0%)) | 0.40 (0.18–0.91) | 0.029 | ||
| Walk z-score (≤median (-0.02)) | 0.26 (0.11–0.61) | 0.002 | 0.31 (0.13–0.74) | 0.009 |
| TL,CO % pred (≤median (71.0%)) | 0.25 (0.09–0.69) | 0.004 | 0.30 (0.11–0.87) | 0.03 |
| Missing | 1.62 (0.72–3.61) | 1.51 (0.56–4.04) | ||
| FEV1/FVC (≤median (71.7%)) | 0.74 (0.34–1.61) | 0.45 | ||
| Associated medical condition | 1.034 (0.28–3.76) | 0.96 |
Odds ratios (OR) are presented with 95% confidence intervals. WHO: World Health Organization; P̄ra: mean right atrial pressure; P̄pa: mean pulmonary artery pressure; CI: cardiac index; TPR: total pulmonary resistance; SV,O2: mixed venous oxygen saturation; TL,CO: transfer coefficient of the lung for carbon monoxide; % pred: % predicted; FEV1: forced expiratory volume in one second; FVC: forced vital capacity.