... screening visits after a normal screening mammogram.[ 7 ] The primary objective of breast screening is to reduce ... category B (9.4%), category C (10.5%), and category D (10.7%). When 62 887 mammogram pairs from 2017 and earlier were ... D subsequently [ Table 1 ]. Concordance overall was 68.7% (same BI-RADS density on both mammograms) and 82.5% for ...