TABLE 1.

Descriptive Sample Statistics

Characteristic	Arm A (n = 108)	Arm B (n = 204)	Arm C (n = 203)	Total (n = 515)
Age, mean (SD), y	51.19 (10.65)	51.69 (10.07)	52.00 (10.07)	51.71 (10.28)
Patient weight, mean (SD), kg	79.72 (21.99)	78.57 (19.58)	80.21 (19.58)	79.48 (19.11)
Sex, No. (%)
Female	106 (98.1)	204 (100)	202 (99.5)	512 (99.4)
Male	2 (1.9)		1 (0.5)	3 (0.6)
Race, No. (%)
Non-White	14 (13.0)	26 (12.8)	34 (16.7)	74 (14.4)
White	94 (87.0)	178 (87.2)	169 (83.3)	441 (85.6)
Primary tumor size, No. (%)
≤2 cm	43 (39.8)	63 (30.9)	77 (37.9)	183 (35.5)
>2 to 5 cm	53 (49.1)	114 (55.9)	101 (49.8)	268 (52.1)
>5 cm	12 (11.1)	27 (13.2)	25 (12.3)	64 (12.4)
Histologic grade, No. (%)
1	12 (11.1)	16 (7.8)	14 (6.9)	42 (8.2)
2	34 (31.5)	70 (34.3)	71 (35.0)	175 (34.0)
3	61 (56.5)	114 (55.9)	111 (54.7)	286 (55.5)
Missing	1 (0.9)	4 (2.0)	7 (3.4)	12 (2.3)
ER status, No. (%)
Negative	43 (39.8)	74 (36.1)	78 (38.4)	195 (37.9)
Positive	64 (59.3)	131 (63.9)	124 (61.1)	318 (61.7)
Missing	1 (0.9)		1 (0.5)	2 (0.4)
PGR status, No. (%)
Negative	49 (45.4)	82 (40.2)	93 (45.8)	224 (43.5)
Positive	58 (53.7)	122 (59.8)	109 (53.7)	289 (56.1)
Missing	1 (0.9)		1 (0.5)	2 (0.4)
HER2/neu chromosome, No. (%)
0	37 (34.3)	62 (30.4)	85 (41.9)	184 (35.7)
1 +	36 (33.3)	71 (34.8)	56 (27.6)	163 (31.7)
2+	16 (14.8)	35 (17.2)	27 (13.3)	78 (15.1)
Missing	19 (17.6)	36 (17.7)	35 (17.2)	90 (17.5)

Abbreviations: ER, estrogen receptor; HER2, human epidermal growth factor receptor 2; PGR, progesterone receptor.