Table 1 Patient characteristics
From: Evaluation of biological pathways involved in chemotherapy response in breast cancer
Characteristics | ER-negative group (n= 51) | ER-positive group (n= 82) |
|---|---|---|
Median Age (years) Range | 51 (29-75) | 51 (28-79) |
T stage | Â | Â |
T0 | 0 | 1 (1%) |
T1 | 8 (16%) | 4 (5%) |
T2 | 24 (47%) | 46 (56%) |
T3/4 | 19 (37%) | 31 (38%) |
Histological grade | Â | Â |
Grade 1 | 0 | 2 (2%) |
Grade 2 | 6 (12%) | 45 (55%) |
Grade 3 | 43 (84%) | 31 (38%) |
Unknown | 2 (4%) | 4 (5%) |
Lymph node status | Â | Â |
Positive | 38 (75%) | 55 (67%) |
Negative | 13 (25%) | 27 (33%) |
HER2 over-expressed or amplified | Â | Â |
Yes | 18 (35%) | 15 (18%) |
No | 32 (63%) | 67 (82%) |
Unknown | 1 (2%) | 0 |
Pathologic complete response | Â | Â |
Yes | 27 (53%) | 7 (9%) |
No | 24 (47%) | 75 (91%) |