Table 1.

Patient and Tumor Characteristics

Feature	Value
Median age (range)	50 (29–68)
Ethnicity (%)
White	28 (62%)
Black	2 (4%)
Hispanic	8 (18%)
Asian	7 (16%)
Tumor Stage [total (%)]
T3	31 (69%)
T4a–c	4 (9%)
T4d	10 (22%)
Tumor Histology (%)
IDC	37 (82%)
ILC	8 (18%)
Histological Differentiation (%)
Well	5 (11%)
Moderate	12 (27%)
Poor	25 (55%)
Not Specified	3 (7%)
Nuclear Grade (%)
High	23 (51%)
Intermediate	10 (23%)
Low	6 (13%)
Not Specified	6 (13%)
Lymphvascular Invasion (%)
Present	16 (35%)
Absent	26 (58%)
Not Specified	3 (7%)
Estrogen/Progesterone receptor (ER/PR) status (%)
ER+ / PR +	18 (40%)
ER+ / PR −	9 (20%)
ER− / PR +	1 (2%)
ER− / PR−	17 (38%)
HER2/neu status (%)
HER2/neu +	20 (44%)
HER2/neu −	25 (56%)

Note: IDC = infiltrating ductal carcinoma; ILC = infiltrating lobular carcinoma