Diagnostic performance of resting and exercise haemodynamic variables
| mPAPrest mmHg | PVRrest WU | TPRrest WU | mPAPmax mmHg | PVRmax WU | TPRmax WU | |
| AUC | 0.76±0.04 | 0.81±0.03 | 0.88±0.03 | 0.95±0.02 | 0.81±0.03 | 0.99±0.01 |
| Optimal cut-off | 14 | 1.25 | 2.61 | 31 | 2.00 | 2.97 |
| Sensitivity (95% CI) | 0.92 (0.85–0.96) | 0.86 (0.78–0.92) | 0.84 (0.76–0.90) | 0.98 (0.93–1.0) | 0.48 (0.38–0.57) | 0.94 (0.88–0.97) |
| Specificity (95% CI) | 0.43 (0.32–0.54) | 0.65 (0.53–0.75) | 0.78 (0.67–0.86) | 0.77 (0.65–0.85) | 0.98 (0.92–1.0) | 0.99 (0.92–1.0) |
Data are presented as mean±sd, unless otherwise stated. mPAPrest: mean pulmonary artery pressure at rest; PVRrest: pulmonary vascular resistance at rest; TPRrest: total pulmonary resistance at rest; mPAPmax: mean pulmonary artery at maximal exercise; PVRmax: pulmonary vascular resistance at maximal exercise; TPRmax: total pulmonary resistance at maximal exercise; AUC: area under the receiver operating curve.