[Descriptive epidemiology of bladder cancer in the health area 8 in Madrid. Retrospective study on 315 patients].

The Madrid Health Care District No. 8 includes 19 town councils located in the South and West of the Autonomous Community. The actual population is 381,052 inhabitants with a floating population of 50,000 people. Currently, Mostoles Hospital is the Referral Health Centre of this district. Between 1983 and 1992, 315 patients received treatment for vesical cancer. Of them, 77% were primarily superficial and 23% infiltrant. 98% were transitional carcinomas. Patient's mean age was 65.9 years, with 83.5% men and 15.5% women. Incidence obtained was 14 x 10(5) inhabitants (23.5 men and 4.6 women). Smoking was the only risk factor statistically significant. Prevalence was 39.3 x 10(5). Actual mortality rate obtained for vesical cancer was 1.3 x 10(5). Comparison of our overall data with national and international statistics show extended consistence except for the mortality rate which was lower than the data consulted.