Fig. 3

Validation of the prognostic model in CRC patients. (A) Kaplan-Meier survival analysis comparing OS between high- and low-risk groups (log-rank test, p < 0.05). (B) ROC curve showing the overall predictive accuracy of the model. (C) Time-dependent ROC curves indicating model performance at 1-, 3-, and 5-year survival (AUCs: 0.714, 0.674, and 0.653, respectively).