by Shernay Williams

Black women living in socioeconomically disadvantaged neighborhoods experience significantly higher rates of an aggressive and difficult-to-treat subtype of breast cancer, according to an October 2025 study.

The subtype, triple-negative breast cancer (TNBC), disproportionately affects Black women. However, the study, published in the JAMA Network, finds that TBNC cases progressively decrease the more advantaged a Black woman’s neighborhood.

The report’s researchers analyzed Census data from 13,340 Black women who were diagnosed with triple-negative breast cancer between 2010 and 2020. The women in the most under-resourced communities had the highest incidences of the cancer, 19.3 per 100,000 women, compared to 17.2 per 100,000 in the most advantaged areas.

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