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

Figure 3 Validating the diagnostic nomogram in the expanded testing set. A: The receiver operating characteristic curve of the expanded testing set; B: The calibration curve of the expanded testing set; C: The decision curve analysis of the expanded testing set; D: Comparison of area under the receiver operating characteristic curves between nomogram and all independent factors, including sex, T stage, tumor size, grade stage.