Table 2.

Mammographic density estimates

BIRAD scorenPercent (%)
1 Mostly fatty breast1414.1
2 Scattered fibroglandular densities4444.4
3 Heterogeneously dense3535.4
4 Extremely dense breast6
6.1
Total99
100.0

Continuous measures
n
Mean (%)
SD (range)
Subjective percent density9933.626.0 (2-95)
TOA9942.021.8 (1.1-88.6)
TOV9956.224.9 (2.2-95.5)
DOA9918.017.4 (0.13-73.4)
DOV9928.624.0 (0.13-91.2)
PD9926.218.5 (0.6-72.5)