DIET AND COLORECTAL ADENOMAS - A CASE-CONTROL STUDY IN MAJORCA

A case-control study on dietary factors and colorectal adenomas was co nducted in the island of Majorca, Spain, from April 1987 to February 1 990. Subjects were interviewed using a food frequency questionnaire. N utrient and caloric intake was estimated using local food composition tables. The risk of colorectal adenomas was related to the consumption of sugar and pastries. Consumption of vegetables was highly protectiv e, irrespective of the cooking procedures. Analyses by nutrients ident ified as protective factors fiber from fruits and vegetables, magnesiu m and zinc, and vitamins C, B-6 and folic acid. No excess risk was fou nd for alcohol drinking, intake of saturated fats or animal protein. O f the non-dietary factors, sedentariness in the workplace and urban re sidence were the only risk factors identified. (C) 1993 Wiley-Liss. In c.