Table 5.
Number of recurrence and metastasis (R&M) cases of biomarkers changes.
| Variables | No. of cases |
|---|---|
| CK5/6 expression | |
| Pos→Neg. | 18 |
| BLBC →NBLBC | 3 |
| Neg.→Pos. | 13 |
| NBLBC→BLBC | 6 |
| Neg→Neg. | 23 |
| NBLBC→NBLBC | 4 |
| Pos.→Pos. | 84 |
| BLBC→BLBC | 31 |
| EGFR expression | |
| Pos→Neg. | 14 |
| BLBC →NBLBC | 3 |
| Neg.→Pos. | 8 |
| NBLBC→BLBC | 3 |
| Neg→Neg. | 4 |
| NBLBC→NBLBC | 10 |
| Pos.→Pos. | 31 |
| BLBC→BLBC | 106 |
| BLBC/NBLBC groups | |
| Pos→Neg. | 3 |
| BLBC →NBLBC | 0 |
| Neg.→Pos. | 8 |
| NBLBC→BLBC | 1 |
| Neg→Neg. | 7 |
| NBLBC→NBLBC | 1 |
| Pos.→Pos. | 118 |
| BLBC→BLBC | 41 |
NBLBC, non-basal-like breast cancer; BLBC, basal-like breast cancer; EGFR, epidermal growth factor receptor; CK5/6, cytokeratin5/6; Neg., Negative; Pos., Positive.