Table 1.
Characteristics of the analyzed groups.
| NZ (n = 25) |
NC (n = 9) |
PZ (n = 22) |
PC (n = 20) |
Kruskal–Wallis (P) | |
|---|---|---|---|---|---|
| Mean age | 39.73 | 43.33 | 43.40 | 48.70 | 0.07 |
| Median age | 41.00 | 42.00 | 41.00 | 48.00 | 0.07 |
| Reproductive status | |||||
| Reproductive | 64.00% | 55.58% | 68.18% | 45.00% | NA |
| Premenopausal | 8.00% | 11.11% | 4.55% | 10.00% | NA |
| Menopausal | 28.00% | 11.11% | 27.27% | 25.00% | NA |
| Postmenopausal | 0.00% | 22.2% | 0.00% | 20.00% | NA |
| Mean age at menarche | 13.92 | 14.44 | 14.05 | 13.80 | 0.84 |
| Fertility rate | |||||
| 0 children | 12.00% | 11.11% | 18.18% | 25.00% | NA |
| 1–2 children | 56.00% | 77.78% | 54.55% | 45.00% | NA |
| >2 children | 32.00% | 11.11% | 27.27% | 30.00% | NA |
| Mean number of children | 1.84 | 2.22 | 1.95 | 1.85 | 0.98 |
| Cancer location | |||||
| Left breast | no cancer | 33.33% | no cancer | 45.00% | NA |
| Right breast | no cancer | 55.56% | no cancer | 45.00% | NA |
| Both breasts | no cancer | 11.11% | no cancer | 10.00% | NA |
| Cancer type | |||||
| Ductal | 0.0% | 100.00% | 0.0% | 100.00% | NA |
| Lobular | 0.0% | 0% | 0.0% | 0.0% | NA |
NZ, generally healthy patients without the BRCA1 mutation; NC, patients with breast cancer but without the BRCA1 mutation; PC, patients with both breast cancer and the BRCA1 mutation; PZ, generally healthy patients with the BRCA1 mutation; NA, not applicable.