| Variable | Females | Males | Total |
| Role of inheritance in BC |
|
| |
| Yes | 405 | 70 | 475 |
| No | 202 | 50 | 252 |
| Total | 607 | 130 | 727 |
| Early puberty and late menopause are risk factors for BC |
| ||
| Increase the risk of BC | 190 | 43 | 234 |
| Decrease the risk of BC | 77 | 44 | 122 |
| Do nothing | 356 | 43 | 397 |
| Total | 623 | 130 | 753 |
| Delayed childbirth is a risk |
|
| |
| Increase the risk of BC | 148 | 40 | 188 |
| Decrease the risk of BC | 90 | 50 | 140 |
| Do nothing | 386 | 40 | 426 |
| Total | 624 | 130 | 754 |
| Natural breastfeeding |
|
| |
| Increase the risk of BC | 31 | 40 | 71 |
| Decrease the risk of BC | 469 | 44 | 513 |
| Do nothing | 122 | 46 | 168 |
| Total | 618 | 130 | 752 |
| Hormonal usage |
|
|
|
| Increase the risk of BC | 268 | 30 | 298 |
| Decrease the risk of BC | 99 | 52 | 151 |
| Do nothing | 250 | 48 | 298 |
| Total | 617 | 130 | 747 |