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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: JAMA Intern Med. 2014 Jan 1;174(1):125–132. doi: 10.1001/jamainternmed.2013.11963

TABLE 4.

Breast Cancer Risk Assessment Tool scores for lifetime breast cancer risk for women screened by breast MRI and women screened by mammography alone, 2005–2009.

Year

2005 2006 2007 2008 2009 Total
BRCAT lifetime risk score N % N % N % N % N % N %

Exams of women who received breast MRI for screening*
<15% 57 (74) 147 (50) 227 (55) 194 (53) 202 (50) 827 (53)
15–20% 13 (17) 85 (29) 84 (20) 79 (21) 87 (21) 348 (22)
>20% 7 (9) 60 (21) 101 (25) 96 (26) 119 (29) 383 (25)
Exams of women who received screening mammography only
<15% 234,209 (92) 229,157 (92) 228,708 (92) 222,685 (92) 216,402 (92) 1,131,161 (92)
15–20% 15,120 (6) 14,480 (6) 14,590 (6) 14,560 (6) 13,657 (6) 72,407 (6)
>20% 5,153 (2) 5,110 (2) 5,033 (2) 5,021 (2) 4,920 (2) 25,237 (2)
*

Test for trend comparing total proportion at >20% high risk to <20% (p<0.0001)