Fig. 5From: A random forest algorithm-based prediction model for moderate to severe acute postoperative pain after orthopedic surgery under general anesthesiaThe ROC curves of the models in this study. (A) The ROC curve of the prediction model constructed by random forest in the training set. (B) The ROC curve of the prediction model constructed by random forest in the testing set. (C) The ROC curve of the prediction model constructed by multivariate logistic regression in the training set. (D) The ROC curve of the prediction model constructed by multivariate logistic regression in the testing setBack to article page