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. 2016 Mar 24;26(12):4354–4360. doi: 10.1007/s00330-016-4309-3

Table 2.

Cross tabulation between BI-RADS scores and Volpara density grade (VDG)

BI-RADSa
VDGb 1 2 3 4 Total
1 839 872 52 0 1763
2 457 1730 513 8 2708
3 76 788 1699 87 2650
4 6 55 703 541 1305
Total 1378 3445 2967 636 8426

aBreast Imaging Reporting and Data System

bVolpara Density Grade