fig3
From: Endothelial dysfunction and coronary artery disease: new insights from reactive hyperemia test
Figure 3. ROC curve for △RI% as predictor of CAD status. AUC is 0.853. △RI% > -43% was the cutoff value according to the Youden index to identify the presence of CAD. ROC: Receiver-operating characteristic; CAD: coronary artery disease.
