Table 1 Number of subjects and mean density by diagnostic category
From: Visually assessed breast density, breast cancer risk and the importance of the craniocaudal view
Diagnostic category | Number of subjects | Mean (SD) percent density |
|---|---|---|
No cancer | 9,737 | 33.1 (20.6) |
Cancer at 1996 screen | 82 | 42.9 (17.8) |
Interval cancer < 1 year | 7 | 50.3 (28.1) |
Interval cancer 2 to 3 years | 42 | 34.2 (22.0) |
Cancer at subsequent screen | 96 | 34.5 (21.2) |
Cancer thereafter | 84 | 42.4 (24.3) |
Total | 10,048 | 33.3 (20.7) |