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Table 3 AUC values for all the significant variables in univariate analysis of three groups

From: Radiomic nomogram based on MRI to predict grade of branching type intraductal papillary mucinous neoplasms of the pancreas: a multicenter study

Characteristics

Training set

External Validation set 1

External Validation set 2

AUC

95% CI

AUC

95% CI

AUC

95% CI

Radiomics signature

0.836

0.754 ~ 0.917

0.811

0.669 ~ 0.952

0.822

0.701 ~ 0.943

MPD size

0.791

0.683 ~ 0.899

0.747

0.572 ~ 0.923

0.793

0.647 ~ 0.939

Largest cyst size

0.613

0.486 ~ .0740

0.705

0.519 ~ 0.891

0.681

0.516 ~ 0.846

Enhancing mural nodule

0.614

0.484 ~ 0.744

0.732

0.548 ~ 0.915

0.686

0.517 ~ 0.855

CA19–9 > 37kU/L

0.730

0.608 ~ 0.852

0.758

0.576 ~ 0.940

0.767

0.604 ~ 0.931

  1. MPD Main pancreatic duct, AUC Area under the receiver operating characteristic (ROC) curve, CI Confidence internal