Abstract
e13157 Background: Breast cancer diagnoses in young women have increased over the last 10 years. Despite decreasing mortality rates for breast cancer, disparities continue to exist for specific populations including Black women and premenopausal women. Recent studies observe a 41% increased death rate in Black women compared to White women, and a two-fold increased mortality in women younger than 50 years. Many biological and societal factors can affect breast cancer mortality. We sought to evaluate the relationship between germline mutations (GM), breast cancer subtype, and mortality based on race in a unique, young breast cancer patient population. Methods: We assembled a 10-year retrospective chart review (2012 to 2022) of 773 women diagnosed with breast cancer under the age of 40 in a regional health network. Data was collected from electronic medical records. Associations were assessed using the chi-square test using SAS version 9.4. Results: Out of the 773 patient information collected, 60% of patients were White, 36% Black, and 3% Other. A total of 675 patients had genetic results and 124 patients with documented GM. Of patients with GM, 48 were Black and 74 were White. 13 patients with germline mutations had documented deaths. There was no statistical link between germline mutations and mortality. Of the 13 patients, 4 (30%) were Black and 9 (70%) were White. There was no statistical difference amongst area deprivation index (ADI) quintiles for mortality in patients with GM. Of the 675 patients with genetics data, 72 patients without GM died which includes 31 Black patients, 38 White patients, 3 Other. Based on our data, there is a higher prevalence of germline mutations (60%) in White patients over Black patients and a descriptive predominance of mortality despite absence of statistical significance. More patients who resided in areas of higher ADI (2-4) with GM died than in areas of lower ADI. Conclusions: Our data demonstrates a descriptive prevalence in mortality among young White patients compared to young Black patients. Across the USA, the Black population is 13% and in Louisiana, that population is 33%. Given that our cohort population was 36% Black, it is noteworthy that we were unable to demonstrate a statistical mortality predominance among these young patients. [Table: see text]
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