Fig. 3

A, B LASSO-Cox regression shows independent prognostic genes. The upper picture displays the shrinkage of the coefficients, and the lower picture shows a tenfold cross-validation. C Risk mark signature on basis of three essential genes. The upper figure displays the calculation formula and the value of the risk mark; the middle figure displays the distribution of survival status on basis of the risk mark; the bottom figure displays the cluster heat map of the three essential genes. D ROC over time shows the accuracy of Nomogram in predicting 3-year overall survival and 5-year overall survival. According to the Kaplan–Meyer survival curve, the survival rates of BLCA patients with high-risk scores and low-risk scores are different