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

Figure 8 Comparison of area under the receiver operating characteristic curves between nomogram and all independent factors, including age, T stage, tumor size, grade stage, bone metastasis, surgery, and chemotherapy. A: 12 months in the training set; B: 36 months in the training set; C: 60 months in the training set; D: 12 months in the validation set; E: 36 months in the validation set; F: 60 months in the validation set.