Meat Consumption, Animal Products, and the Risk of Bladder Cancer: A Case-Control Study in Uruguayan Men


In the time period 1996-2004, all incident cases of bladder cancer were included in a case-control study inorder to study the role of meat consumption and product animals in the etiology of urothelial cancer. The studyincluded 225 cases and 1,510 hospitalized controls with non-neoplastic conditions, not related to smoking andalcohol drinking. Relative risks, approximated by the odds ratios, were calculated in order to clarify the effectof meat consumption in the etiology of urothelial cancer. Total meat consumption (OR 1.47, 95% CI 1.02-2.11),total processed meat (OR 1.57, 95% CI 1.08-2.27), frankfurters (hot dogs) (OR 2.03, 95% CI 1.28-3.21), ham(OR 1.79, 95% CI 1.21-2.67) and salted meat (OR 2.73, 95% CI 1.78-4.18) were positively associated with riskof bladder cancer. Animal products, like cheese, whole milk, and total eggs were also associated with bladdercancer risk (OR for eggs 4.05, 95% CI 2.68-6.12). In conclusion, total meat, processed meat, and eggs could playan important role in the etiology of bladder cancer in Uruguay.