ROC curves and Kaplan–Meier plots for five validated miRNAs (miR-183-5p, miR-194-5p, miR-205-5p, miR-375, and miR-1285-5p).

(A) ROC curves of five miRNAs and the three-miRNA combination, with AUC values. Arrows indicate cutoff points. (B) Kaplan–Meier plots of overall survival for five miRNAs and the three-miRNA combination. Based on AUC values and cutoffs, the 45 samples were divided into two groups (high and low expression) for each miRNA, and statistical analysis was performed to calculate p-values using the log-rank test.