A multivariable analysis across the pan-cancer cohort using Cox proportional-hazards regression demonstrated that KMT2C mutation was significantly associated with better OS (hazard ratio, 0.69; 95%CI, 0.52-0.90; P = 0.006), and association remained significant with bladder (P = 0.039), colorectal (P = 0.024), melanoma (P < 0.001) and renal (P < 0.001)...