Figure 2.

Receiver operating characteristic and calibration curve analysis. A and B: It displays receiver operating characteristic curves plotted to further validate the predictive efficiency of the model. The curves represent both the training and test sets; C and D: The calibration curve illustrates the agreement between the predicted probability and the actual incidence of emergence agitation in both the training and test sets. A and C are training set, B and D are test set. AUC: Area under the curve.