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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: Acad Radiol. 2011 Nov 3;19(1):95–99. doi: 10.1016/j.acra.2011.09.003

Table 1.

Study population cross classified by lifetime risk for breast cancer and reported maternal family history

Gail lifetime risk Family history No family history*
<20% 9,612 (14.9) 53,871 (83.3)
20%–25% 745 (1.2) -
>25% 431 (0.7) -

Note- Data in parenthesis is the percent of the total N=64,659.

*

Gail score not calculated, and assumed to be lower than 20%.