Table 1.
Family Members with Metastasis | ||||||
---|---|---|---|---|---|---|
Family Members without Metastasis | 0 | 1 | 2 | 3–4 | 5+ | Total |
0 | 0 | 10 | 7 | 2 | 0 | 19 |
1 | 23 | 36 | 12 | 10 | 0 | 81 |
2 | 42 | 14 | 12 | 3 | 0 | 71 |
3–4 | 22 | 19 | 8 | 7 | 0 | 56 |
5+ | 2 | 3 | 2 | 3 | 5 | 15 |
Total | 89 | 82 | 41 | 25 | 5 | 242 |
Table shows numbers of families containing the designated numbers of members with and without metastasis. Eligible families must have two or more members with medically verified breast cancer, at least one of whom has complete data for age and year of diagnosis and metastatic status.