Figure 2. ROC curves and AUROCs for the 1-, 3- and 5-year disease-free survival models constructed for training groups using ANN, LR and DT.

The AUROC values for 1-year (A), 3-year (B) and 5-year (C) disease-free survival were 0.977, 0.989 and 0.963 for ANN models, 0.771, 0.751 and 0.769 for LR models, and 0.734, 0.825 and 0.760 for DT models, respectively. In all disease-free survival models for training groups, AUROC values obtained by ANN were superior to those obtained by LR and DT.