Fig. 5

Prognostic effectiveness of the combined 4 markers in HNC patients receiving radiotherapy, as determined by Kaplan-Meier survival analysis from the TCGA-HNSCC dataset (n = 502). The patients possessed at least one high-level markers were defined as the high-risk group, while those without any high-level marker being low-risk group. The survival curve, hazard ratio (HR) and p-value (P) are shown