Independent correlates of severe pulmonary hypertension#
| Variable | Adjusted odds ratio | 95% CI | p-value |
| PCO2 per 1-point increase | 0.92 | 0.89–0.96 | 0.0001 |
| Age at listing | 0.95 | 0.92–0.97 | <0.0001 |
| FEV1 per 1% increase from mean value for cohort | 0.96 | 0.93–0.99 | 0.003 |
| Ppcw per 1 mmHg increase above mean value for cohort | 1.22 | 1.17–1.28 | <0.001 |
| Any O2 needed | 1.29 | 1.12–1.49 | 0.004 |
| O2 need >3 L·min−1 | 1.89 | 1.03–3.47 | 0.041 |
| African-American | 1.93 | 1.02–3.66 | 0.043 |
#: defined as mean pulmonary artery pressure >40 mmHg. CI: confidence interval; PCO2: carbon dioxide tension; FEV1: forced expiratory volume in one second; Ppcw: pulmonary capillary wedge pressure. The Hosmer–Lemeshow Goodness-of-Fit test yields a Chi-squared value of 7.2 (p = 0.51). n = 1,594. 1 kPa = 0.133 mmHg.