Figure 6. Independent cohort verification of ARG-based AI model. (A) Gene expression heatmap. (B, C) Hazard ratio of hubgenes in male cohort and female cohort in GSE39582. (D) Prognosis differences in AI model identified ARG subpopulations, in which overall survival (p = 0.021) and recurrence free survival (p = 00.019) are different in whole cohort, also different in (E) male cohort while no significance in (F) female cohort. (G) Immune cell infiltration in ARG subpopulations in GSE39582 cohort. (H–K) Immunity checkpoints expression features in ARG subpopulations.