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The commonly used Breast Cancer Risk Assessment Tool (formally known as the Gail model) was developed and validated in mostly white women. Data suggest that this model underestimates breast cancer risk in black women.
Investigators have now developed and validated a breast cancer risk prediction model for black women using prospective data from the Black Women's Health Study, which included 55,879 women, of whom 896 were diagnosed with invasive breast cancer.
Factors associated with increased risk for breast cancer were history of breast cancer in a first-degree relative under the age of 50, history of benign breast disease or biopsy, lower body-mass index at age 18, earlier age at menarche, later age at first birth, longer duration or more r…