Fig. 4

Construction and evaluation of overall survival-associated predictive models. a LASSO coefficient profiles and (b) LASSO deviance profiles depicting the optimal λ value and risk factors. c Kaplan–Meier survival curves of overall survival according to the risk scores; prognosis of the low-risk group is significantly better than that of the high-risk score group. d Receiver operating characteristic curves of overall survival at 1–10 years according to the risk scores in the predictive model data sets. LASSO, Least Absolute Shrinkage and Selection Operator