Skip to main content

Table 5 Breast Cancer Surveillance Consortium 5-year breast cancer risk by Breast Imaging Reporting and Data System breast density with the addition of dense breast volume

From: Combining quantitative and qualitative breast density measures to assess breast cancer risk

  BI-RADS breast density aa BI-RADS breast density ba BI-RADS breast density ca BI-RADS breast density da
5-year risk, mean (SD) 5-year risk, mean (SD) 5-year risk, mean (SD) 5-year risk, mean (SD)
Dense breast volume,b ml
 Quartile 1: ≤ 35.9 0.9 (0.5) 1.6 (0.9) 1.8 (1.1) 1.5 (0.8)
 Quartile 2: 36.0–50.0 1.1 (0.6) 1.7 (0.9) 2.1 (1.3) 2.3 (1.7)
 Quartile 3: 50.1–70.0 1.0 (0.7) 1.8 (1.1) 2.2 (1.3) 2.4 (1.6)
 Quartile 4: 70.1+ 1.2 (0.7) 1.9 (1.2) 2.5 (1.5) 2.5 (1.6)
Mean BCSC 5-year risk 1.0 (0.6) 1.7 (1.0) 2.0 (1.2) 2.0 (1.4)
  1. BCSC Breast Cancer Surveillance Consortium, BI-RADS Breast Imaging Reporting and Data System
  2. aBI-RADS breast density: a = almost entirely fat, b = scattered fibroglandular densities, c = heterogeneously dense, d = extremely dense
  3. bMeasured with Volpara software