Table 3 Association of categorised density with risk by number of views available
From: Visually assessed breast density, breast cancer risk and the importance of the craniocaudal view
Percent breast density (%) | Single view | Two views | ||
|---|---|---|---|---|
| Â | Number of cancers/subjects | OR (95% CI) | Number of cancers/subjects | OR (95% CI) |
0 to 10 | 17/794 | 1.00 (-) | 1/241 | 1.00 (-) |
11 to 25 | 67/2,322 | 1.33 (0.77 to 2.29) | 9/736 | 2.99 (0.37 to 23.70) |
26 to 50 | 91/2,567 | 1.64 (0.96 to 2.77) | 26/1,052 | 6.16 (0.83 to 45.63) |
51 to 75 | 54/1,222 | 1.97 (1.12 to 3.43) | 28/727 | 9.79 (1.32 to 72.47) |
76 to 100 | 8/185 | 1.88 (0.79 to 4.45) | 10/156 | 16.89 (2.13 to 133.87) |
Significance | - | P = 0.05 | - | P < 0.001 |