Figure 6. The prognostic value of clinicopathological characteristics and risk score. (A) Univariate Cox regression shows that the clinical factors of age, gender, clinical stage, TNM stage, and risk score were closely associated with OS. (B) Multivariate Cox analysis demonstrates that the 15-lncRNA signature is an independent prognostic factor for bladder cancer. (C) ROC curve analysis indicates that the 15-lncRNA signature is an excellent predictive indicator (AUC = 0.731).