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Relation between the presence of BRCA1 mutation and clinical data.
| Hereditary cancer syndromes | Tested persons | BRCA1 mutation |
|---|---|---|
| Hereditary breast - ovarian cancer, group 1 | 5 | 0 0% (95% CI: 0 - 43.5%) |
| Hereditary breast - ovarian cancer, group 2 | 153 | 2 1.3% (95% CI: 0.4 - 4.6%) |
| Single case of index cancer in the kindred | 430 | 8 1.9% (95% CI: 0.9 - 3.6%) |
