Researcher Dr. Murray Rebner said the later guidelines are putting Black women at a disadvantage by ignoring some very key facts about their risk. While Black women are slightly less likely to get breast cancer, they’re significantly more likely to die from it. Studies find 23 percent of breast cancers in Black women are diagnosed before age 50 compared to 16 percent of all breast cancers in White women. Triple negative breast cancer makes up 21 percent of the cases in Black women compared to 10 percent in White women. READ: Study indicates that exercise can reduce risk of breast cancer returningRebner says the BRCA2 genetic mutation which dramatically raises the risk of breast cancer is also more common in Black women than White women who aren’t of Ashkenazi Jewish descent.