Risk factors, prognostic factors, and nomograms for distant metastasis in patients with diagnosed duodenal cancer: A population-based study

Figure 1 Construction and validation of a diagnostic nomogram. A: A nomogram to estimate the risk of distant metastasis in duodenal carcinoma patients; B: The receiver operating characteristic curve of the training set; C: The calibration curve of the training set; D: The decision curve analysis of the training set; E: The receiver operating characteristic curve of the validation set; F: The calibration curve of the validation set; G: The decision curve analysis of the validation set. AUC: Area under the curve.