Figure 4.
Validation of risk model in GEO cohort. (A) Distribution of HNSCC patients in GEO cohort based on risk score in TCGA cohort. (B) PCA plot for HNSCCs. (C) Survival status for each patient. (D) Kaplan–Meier curves for OS of patients in high- and low-risk groups. (E) The ROC curves demonstrated the predictive efficiency of the risk score.