Greater Survival Improvement in African American vs. Caucasian Women with Hormone Negative Breast Cancer.

Several exceptions, including African Americans with Grade 1 disease, Caucasians and African Americans in the Separated category in the stage I-III groups and African Americans in the > 70 year, Grade 1, ER- and the Divorced and Widowed categories and Caucasians and African Americans in the Separated category in the stage IV grouping did not reach statistical significance due to low sample numbers ( Table S1 ).

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