Table 3

Percentage of mammographic density of the study subjects by categories of mammographic density based on the Breast Imaging Reporting and Data System (BIRADS) of the American College of Radiology
ACR category N Percent density
Mean Median
Mostly fatty (ACR I) 58 3 1
Fibroglandular (ACR II) 282 11 8
Heterogeneously dense (ACR III) 283 33 31
Dense (ACR IV) 65 52 50
Missing evaluations 7 22 13
Overall 695 23 18

Trocchi et al.

Trocchi et al. BMC Cancer 2012 12:554   doi:10.1186/1471-2407-12-554

Open Data