Development and validation of a predictive model for the pathological upgrading of gastric low-grade intraepithelial neoplasia

Figure 5 Evaluation of the performance of the nomogram in predicting the risk of pathologic upgrade in patients with gastric low-grade intraepithelial neoplasia in the logistic stepwise regression model. A: The receiver-operating characteristic curve of the nomogram in the training cohort (area under the curve = 0.896); B: The receiver-operating characteristic curve of the nomogram in the internal validation cohort (area under the curve = 0.908); C: The calibration curve. ROC: Receiver-operating characteristic; AUC: Area under the curve; HGIN: High-grade intraepithelial neoplasia; Ca: Cancer.