Fig. 2

Forest plot of and Kaplan–Meier curves for high- and low-risk group patients. A Forest plot of 16 prognosis-related DNA repair genes identified by univariate Cox regression. B Forest plot of 10 prognosis-related genes identified by the multivariate Cox regression model after optimization based on the AIC value. C KM curve of overall survival for LUSC patients in the high-risk and low-risk groups stratified by the median risk score. D Risk score scatter plot for patients who survived and those who died. Patients who died are presented as red dots. Patients who survived are presented as green dots. E The individual inflection point of the risk score curve is displayed by a dotted line. Patients were divided into low-risk and high-risk groups by the median risk score. Red dots represent patients with high risk. Green dots represent patients with low risk