Fig. 3

Prognostic performance of glutamine metabolism-derived risk scores. Kaplan-Meier survival curves comparing overall survival between high- and low-risk MM patients in (A) training (GSE136337) and (B) validation (GSE4581) cohorts. (C) Forest plot of univariate Cox regression for clinical variables and risk scores. (D) Multifactorial Cox regression identifying independent prognostic factor. (E) Time-dependent ROC curves evaluating 1-, 3-, and 5-year survival prediction. (F) Comparative AUC analysis between risk scores and conventional prognostic indicators