Fig. 3

a A ROC curve demonstrating the prediction value of echocardiography to diagnose PH (mean PAP > 20 mmHg). AUC—0.72; 95% CI 0.66–0.77. Youden index—estimated PASP above 34 mmHg by echocardiography results in 0.73 sensitivity and 0.60 specificity. b A ROC curve demonstrating the prediction value of echocardiography to diagnose PH (mean PAP > 35 mmHg). AUC—0.83; 95% CI 0.77–0.89. Youden index—Estimated PASP above 52 mmHg by echocardiography results in 0.68 sensitivity and 0.83 specificity