BRCA1 and breast cancer: BC-incidences until follow-up completion in discontinuing women were: 58/2647 [2.2%] (total), 4/727 [0.6%] (BRCA1/2), 2/21 [9.5%] (other risk mutations), 1/18 [0.6%] (chest irradiation), 26/815 [3.2%] (personal history), 17/669 [2.5%] (family history) and 8/379 [2.1%] (other).