Table 1.

Breast cancer patient characteristics (N = 189).

	Characteristic	No. of patients	Median (range) or percent
Age			51 (29–86)
Age group (%)	<50	83	43.9
	≥50	106	56.1
Race (%)	Caucasian	91	48.1
	African American	92	48.7
	Other races	6	3.2
Stage (%)	1	48	25.4
	2	52	27.5
	3	26	13.8
	4	63	33.3
ER (%)	Positive	109	57.7
	Negative	69	36.5
	Unknown	11	5.8
PR (%)	Positive	88	46.6
	Negative	89	47.1
	Unknown	12	6.3
HER2 (%)	Positive	34	18.0
	Negative	119	63.0
	Unknown	36	19.0
Grade (%)	1	30	15.9
	2	43	22.7
	3	76	40.2
	Unknown	40	21.2
Tumor type (%)	Ductal	152	80.4
	Lobular	18	9.5
	Other*	19	10.1
Lymph node status (Stage 1–3 patients)	Negative	63	50.0
	Positive	45	35.7
	Unknown	18	14.37
Tumor size (cm) Stage 1–3 patients	<2 cm	63	50.0
	2–5 cm	36	28.6
	>5 cm	12	9.5
	Unknown	15	11.9

Note:

^*Other includes: medullary, mucinous, tubular, colloid, and unknown.

Abbreviations: ER, estrogen receptor; PR, Progesterone Receptor; Her-2, human epidermal growth factor receptor-2.