Fig. 4

Risk Score is an independent marker of prognosis in OSCC. a The result of multivariate Cox regression analysis. Samples with Hazard ratio (HR) > 1 have a higher risk of death in comparison to the reference samples, and samples with HR < 1 have a lower risk of death. Kaplan Meier survival curves of OSCC samples with different clinicopathological factors, including female (b), male (c), Grade1 + Grade2 (D) and Grade3 + Grade4 (D). The horizontal axis represents time, the vertical axis represents survival rate, and different groups are represented by different colors. The P value is obtained from the log-rank test