Age Factors Aged Aged 80 and over Clinical Decision-Making *Cystectomy/adverse effects/mortality Disease-Free Survival Female Geriatric Assessment Humans Life Expectancy Male Middle Aged Neoplasm Invasiveness Odds Ratio Patient Selection Quality of Life Radiotherapy/adverse effects/mortality Risk Factors Time Factors Treatment Outcome Urinary Bladder Neoplasms/mortality/pathology/*therapy Complications Elderly Mibc Outcome