Table 8 Incidence of BRCA1 or BRCA2 mutations among Slovenian families with only breast cancer history (no ovarian cancer) subdivided according to the number of breast cancer cases in the family.
From: The occurrence of germline BRCA1 and BRCA2sequence alterations in Slovenian population
Group | 2 breast cancers in family history* | 3 breast cancers in family history* | 4 breast cancers in family history* | more then 5 breast cancers in family history* |
|---|---|---|---|---|
A | 9/29 (31%) | 5/21 (24%) | 7/16 (43%) | 7/11 (64%) |
C | 5/37 (13%) | 3/25 (12%) | 4/9 (44%) | 2/4 (50%) |
D | 1/10 (10%) | 0/6 (0%) | 0/5 (0%) | 0/0 |