Figure 2From: Digital mammographic density and breast cancer risk: a case–control study of six alternative density assessment methodsDistribution of control participants by BI-RADS categories and percent density (PD) values yielded by each quantitative method. *Density readings taken on the left cranio-caudal view (CC) except for BI-RADS, for which the four breasts/views were used to provide a single score per woman, and Quantra, which aggregated data from the CC and medio-lateral oblique view to provide a single measurement per breast.Back to article page