Fig. 5

Prognostic analysis of a four immune-related genes classifier and construction of the nomogram prognostic model. a Kaplan–Meier analysis of OS according to the four immune-related gene classifier in the training and validation cohorts. b Time-dependent ROC analysis of the four immune-related gene classifier for 1-, 3-, and 5-y OS in the training and validation cohorts. c Time-dependent ROC analysis for evaluating the prognostic value of risk score and clinical factors (age, stage, grade, and tumor invasion percent). d Nomogram integrating the four gene-based risk score and significant clinical traits. e Calibration plot of actual risk probability