Figure 3.

Performance of whole abdomen model including association between the whole abdomen model decision function value and the PFS. Receiver operating characteristic (ROC) curves (A) of whole abdomen model performance for predicting platinum sensitivity; (B) five-fold cross-validation, and evaluation with (C) calibration curve; (D) decision curve. Kaplan–Meier curves of PFS according to the decision function value in 93 patients split into high- and low-risk groups from both the (E) training and (F) validation cohorts by cutoff values of 0.296 and −1. ROC curves and (G) 1-, (H) 2-, year AUCs were used to assess the prognostic accuracy of the whole abdomen model. PFS, progression-free survival; ROC, receiver operating characteristic; AUC, area under the receiver operating characteristics curve; HR, hazard ratio; CI, confidence interval; P values were calculated using the unadjusted log-rank test, and hazard ratios were calculated by a univariate Cox regression analysis.