BRCA1/2- mutationcarriers - BRCA1- or BRCA2-mutationscarriers

The cohort, which is part of an international collaboration with IBCCS and Cimba, is covering all (both men and women) who have undergone mutation testing for BRCA1 or 2 in the Southern health region since 1993. It is the largest registry of hereditary cancer in Sweden with 1200 cases. Most individuals have filled in a questionnaire concerning diet, body weight and body measurements, family history, BRCA1/2 status, reproduction and use of oral contraceptives. Blood samples are collected from all participants. Purpose: To study risk factors studies in hereditary breast cancer The dataset includes all men and women, tested for mutations in BRCA1 or BRCA2, in the southern health region since 1993.