From: Comparing the frequency of common genetic variants and haplotypes between carriers and non-carriers of BRCA1 and BRCA2deleterious mutations in Australian women diagnosed with breast cancer before 40 years of age
Age
BRCA1total
with sequenced
data
BRCA1
deleterious
mutation
number
BRCA2total
BRCA2
<40
392
13
179
11
40-49
102
4
34
0
50-59
186
1
32
Total
680
18
245