Immunohistochemical scores for nuclear FOXP1 in familial and sporadic breast tumours (p = 0.004)
| FOXP1 score | BRCA1 (%) | BRCA2 (%) | BRCAX (%) | Sporadic (%) |
| 0 | 4 (11.4) | 3 (8.8) | 8 (14.0) | 15 (15.2) |
| 1 | 4 (11.4) | 6 (17.6) | 7 (12.3) | 33 (33.3) |
| 2 | 18 (51.4) | 18 (52.9) | 25 (43.9) | 30 (30.3) |
| 3 | 9 (25.7) | 7 (20.6) | 17 (29.8) | 21 (21.2) |
| Total | 35 (100.0) | 34 (100.0) | 57 (100.0) | 99 (100.0) |