From: Investigating the feasibility of stratified breast cancer screening using a masking risk predictor
 | Non-screen detected | Cancer-free | p value | ||
---|---|---|---|---|---|
N = 44 | N = 1897 | ||||
 | Count | % | Count | % |  |
Age at mammography | Â | Â | Â | Â | 0.036 |
 < 40 | 3 | 6.8 | 41 | 2.2 |  |
 41–50 | 13 | 29.5 | 370 | 19.5 |  |
 51–60 | 13 | 29.5 | 673 | 35.5 |  |
 61–70 | 8 | 18.2 | 563 | 29.7 |  |
 71–80 | 6 | 13.6 | 217 | 11.4 |  |
 > 80 | 1 | 2.3 | 33 | 1.7 |  |
BMI | Â | Â | Â | Â | 0.149 |
  < 22.8 | 15 | 34.1 | 509 | 26.8 |  |
 22.8–26.4 | 14 | 31.8 | 562 | 29.6 |  |
 26.4–30.6 | 10 | 22.7 | 439 | 23.1 |  |
  > 30.6 | 5 | 11.4 | 387 | 20.4 |  |
BI-RADS density category | Â | Â | Â | Â | 0.010 |
 1 | 1 | 2.3 | 375 | 19.8 |  |
 2 | 15 | 34.1 | 713 | 37.6 |  |
 3 | 22 | 50.0 | 632 | 33.3 |  |
 4 | 6 | 13.6 | 177 | 9.3 |  |
Mammography vendor | Â | Â | Â | Â | 0.011 |
 Hologic | 5 | 11.4 | 549 | 28.9 |  |
 GE | 39 | 88.6 | 1348 | 71.1 |  |