From: Penetrance estimates for BRCA1 and BRCA2based on genetic testing in a Clinical Cancer Genetics service setting: Risks of breast/ovarian cancer quoted should reflect the cancer burden in the family
% died from birth to age
<1900 (n = 45)
1900–1919 (n = 154)
1920–1929 (n = 154)
1930–1939 (n = 124)
1940–1949 (n = 158)
1950–1959 (n = 162)
1960+ (n = 276)
45 years
15%
14%
17%
21%
60 years
42%
56%
57%
62%
70 years
73%
74%
77%
85%