Risk factors, prognostic predictors, and nomograms for pancreatic cancer patients with initially diagnosed synchronous liver metastasis

Figure 2 Validation of the diagnostic nomogram in the training and validation sets. A: The receiver operating characteristic curve of the training set; B: The calibration curve of the training set; C: The decision curve analysis of the training set; D: The receiver operating characteristic curve of the validation set; E: The calibration curve of the validation set; F: The decision curve analysis of the validation set. AUC: Area under curve.