Similar to ROC areas, the figures of merit (FOM) were higher for mammography plus AWBU across all readers, compared with mammography alone using both the BIRADS scores (0.786 versus 0.613; F(1, 270) = 34.1, p < 0.001) and DMIST likelihood scores (0.791 versus 0.614; F(1, 238) = 37.9, p < 0.001) as accuracy indices.