Predictive test result By age | BRCA1 +ve | BRCA1-ve | Number positive BRCA1 | BRCA1 untested | BRCA2 +ve | BRCA2-ve | Number positive BRCA2 | BRCA2 untested | Proportion positive BRCA1 assumed | Proportion positive BRCA2 assumed |
---|---|---|---|---|---|---|---|---|---|---|
18–30 yrs | 28 | 34 | 28/62 (45%) | 41 | 18 | 19 | 18/37 (48%) | 34 | 50% | 50% |
30–39 yrs | 51 | 42 | 51/93 (55%) | 78 | 50 | 41 | 50/91 (55%) | 64 | 50% | 50% |
40–49 | 22 | 44 | 22/66 (33%) | 57 | 34 | 27 | 34/61 (56%) | 49 | 33% | 50% |
50–59 | 10 | 19 | 10/29 (34%) | 43 | 14 | 21 | 14/35 (40%) | 59 | 33% | 40% |
60+ | 2 | 24 | 2/26 (8%) | 60 | 4 | 19 | 4/23 (17%) | 69 | 10% | 20% |
Total | 113 | 163 | 103/266 | 279 | 110 | 127 | 110/240 | 247 |