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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   
T0 0 1 (1%)
T1 8 (16%) 4 (5%)
T2 24 (47%) 46 (56%)
T3/4 19 (37%) 31 (38%)
Histological grade   
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   
Positive 38 (75%) 55 (67%)
Negative 13 (25%) 27 (33%)
HER2 over-expressed or amplified   
Yes 18 (35%) 15 (18%)
No 32 (63%) 67 (82%)
Unknown 1 (2%) 0
Pathologic complete response   
Yes 27 (53%) 7 (9%)
No 24 (47%) 75 (91%)