The Impact of Breast Density Notification Laws on Supplemental Breast Imaging and Breast Biopsy

Dense breast tissue increases breast cancer risk and lowers mammography sensitivity, but the value of supplemental imaging for dense breasts remains uncertain. Since 2009, 37 states and Washington DC have passed legislation requiring patient notification about breast density. Examine the effects of state breast density notification laws on use of supplemental breast imaging and breast biopsies. Difference-in-differences analysis of supplemental...