Table 1: Clinical characteristics.

VariablesTNBC (, 10%)%Non-TNBC (, 90%)% value

Median age, in years 59 (25–92) 59 (22–95)0.52
Race
African American311614780.0003
Asian23121529
White12264136377
Hispanic1161036
Other3291
AH
No188991741980.57
Yes21332
LCIS
No1901001751990.16
Yes00231
Previous history of breast cancer
No156821605900.0003
Yes341816910
Family history of breast cancer
No144761352760.90
Yes462444224
BRCA1
Negative658248197<0.0001
Positive1418173
Unknown/not tested1111276
BRCA2
Negative6886480960.0007
Positive1114184
Unknown/not tested1111276
Chemoprevention
No179941695960.40
Yes116794