Fig. 6From: Machine learning approach for predicting post-intubation hemodynamic instability (PIHI) index values: towards enhanced perioperative anesthesia quality and safetyROC curve of ETR prediction model for classification on ICV values. The AUC value exceeded 0.95, indicating a substantial improvement over random guess. Larger AUC value close to 1 represent better classification performance. ROC receiver operating characteristic, AUC area under curveBack to article page