Skip to main content

Table 2 Frequency distribution of B-categorized biopsies according to the reference diagnosis (Reference standard-B)

From: Mammographic density and inter-observer variability of pathologic evaluation of core biopsies among women with mammographic abnormalities

Density (%) Women B1   B2   B3   B5  
   N % N % N % N %
<10% 242 20 8.3 108 44.6 20 8.3 94 38.8
10 to <25% 181 14 7.7 86 47.5 28 15.5 53 29.3
25 to <50% 186 19 10.2 83 44.6 31 16.7 53 28.5
≥50% 86 5 5.8 65 75.6 5 5.8 11 12.8
Overall 695 58 8.4 342 49.2 84 12.1 211 30.4