Biologic Roles of Estrogen Receptor-β and Insulin-Like Growth Factor-2 in Triple-Negative Breast Cancer

Table 1

Demographic characteristics.

Variable	(%)
Race
African American	3 (21.4)
Caucasian	11 (78.6)
AJCC stage
0-I	0
II	7 (50)
III-IV	7 (50)
Ki-67 status
Low	3 (21.4)
High	11 (78.6)
Age, mean years (range)
<50 yrs	8 (32–58)
>50 yrs	6 (53–65)