Figure 2. Prognostic analysis of S100A9. (A) Univariate Cox regression analysis was used to explore the prognostic value of S100A9 from the perspective of pan-cancer. (B) K-M survival curves of S100A9 in six independent GBM cohorts indicated that GBM patients with low S100A9 expression tend to have better survival outcomes. (C) Univariate and multivariate Cox regression analysis of different clinicopathological characteristics and S100A9 in TCGA cohort.