Table 1.
Characteristics of breast ductal carcinoma samples from US Biomax and the BRCF core combined
| Prognostic factor | No. of DCIS cases (percentage of total) | No. of IDC cases (percentage of total) |
|---|---|---|
| Histologic grade | ||
| 1 | 2 (9%) | 10 (18%) |
| 2 | 7 (32%) | 24 (41%) |
| 3 | 12 (59%) | 24 (41%) |
| Tumor size | ||
| >2 cm | 16 (70%) | 10 (36%) |
| <2cm | 7 (30%) | 18 (64%) |
| BCL2 | ||
| negative | 4 (27%) | 8 (42%) |
| positive | 11 (73%) | 11 (57%) |
| P53 | ||
| negative | 7 (38%) | 9 (36%) |
| positive | 11 (62%) | 16 (64%) |
| Ki67 | ||
| >50% | 3 (16%) | 5 (22%) |
| <50% | 16 (84%) | 18 (78%) |
| ER | ||
| negative | 7 (38%) | 9 (36%) |
| positive | 11 (62%) | 16 (64%) |
| PR | ||
| negative | 7 (38%) | 11 (47%) |
| positive | 11 (62%) | 13 (53%) |
| HER2 | ||
| negative | 0 | 7 (32%) |
| positive | 18 (100%) | 15 (68%) |
| EGFR | ||
| negative | 7 (38%) | 10 (50%) |
| positive | 11 (62%) | 10 (50%) |
| Lymph node | ||
| status | NA | |
| negative | 12 (52%) | |
| positive | 11 (48%) |