Table 4.
Degree and type of relationship, by the size of hematological malignancies families.
| Family members with malignancy | One case | Two cases | ≥ Three cases* | All cases |
|---|---|---|---|---|
| Families | 215 | 29 | 10 | 254 |
| Cases | 215 | 58 | 32 | 305 |
| Blood relatives | ||||
| 1° | 90 | 27 | 12 | 129 |
| 2° | 65 | 25 | 9 | 99 |
| 3° | 60 | 6 | 11 | 77 |
| Relationship | ||||
| 1° Parent-child | 36 | 9 | 4 | 49 |
| 1° Siblings | 54 | 18 | 8 | 80 |
| 2° Aunt/uncle-niece/nephew | 47 | 22 | 3 | 71 |
| 2° Grandparent-child | 14 | 3 | 6 | 23 |
| 2° Half-siblings | 6 | – | – | 6 |
| 3 °Cousins | 58 | 6 | 11 | 75 |
| Gender | ||||
| Male | 129 | 36 | 24 | 189 |
| Female | 81 | 22 | 7 | 110 |
| Unknown | 5 | – | 1 | 6 |
*≥ Three cases include eight families with three cases and two families with four cases.