From Science Daily
Young black women are more likely to have aggressive types of breast cancer compared to non-Hispanic white women, … Women who have inherited mutations in the BRCA1 or BRCA2 genes are more likely to develop breast cancer or ovarian cancer, especially at a younger age. Approximately 5 percent of women with breast cancer in the United States have mutations in BRCA1 or BRCA2 based on estimates in non-Hispanic white women. Moffitt Cancer Center researchers … discovered that 12.4 percent of the participants (young black women diagnosed with breast cancer at or below age 50) had mutations in either BRCA1 or BRCA2.
http://www.sciencedaily.com/releases/2015/08/150825095049.htm
