Establishment and Validation for Predicting the Lymph Node Metastasis in Early Gastric Adenocarcinoma

Figure 2

Receiver operator characteristic (ROC) curves and the area under the ROC curve (AUC) for the logistic regression prediction model in the training set, test set, and external validation. (a) ROC curves in the training set; (b) ROC curves in the test set; (c) ROC curves in the external validation.

(a)

(b)

(c)