Fig. 4

Efficiency of using risk score assessments to predict patient prognosis and construct nomogram models. (A) Pie chart demonstrating the Chi-square test for clinicopathological features across high- and low-risk patient groups. Relationship of clinical staging (B) and T-staging (C) to risk scores. 1-, 3-, and 5-year ROC curves of the risk score and other clinicopathologic features (D–F). Forest plots displaying (G) univariate and (H) multivariate Cox regression analyses in patients with SKCM. (I) Development of nomogram models incorporating risk scores and key clinical parameters. (J) Calibration plots evaluating the discrepancy between forecasted and observed survival outcomes.