Update on triple‐negative breast cancer disparities for the United States: A population‐based study from the United States Cancer Statistics database, 2010 through 2014. Issue 19 (8th July 2019)

• Record Type: Journal Article
• Authors: Scott, Lia C.; Mobley, Lee R.; Kuo, Tzy‐Mey; Il'yasova, Dora
• Is Part Of: Cancer. Volume 125:Issue 19(2019)
• Page Start: 3412
• Page End: 3417
• Publication Date: 2019-07-08
• Subjects: continental population groups -- epidemiology -- ethnic groups -- health status disparities -- registries -- triple‐negative breast neoplasms; Cancer -- Periodicals; Cancer -- Cytopathology -- Periodicals; 616.99405
• DOI: 10.1002/cncr.32207
• Languages: English
• ISSNs: 0008-543X

Abstract

Abstract : Background: Triple‐negative breast cancer (TNBC) has been associated with a more aggressive histology, poorer prognosis, and nonresponsiveness to hormone therapy. It is imperative that cancer research identify factors that drive disparities and focus on prevention. Methods: Using the United States Cancer Statistics database, the authors examined differences between TNBCs compared with all other breast cancers with regard to age, race/ethnicity, and stage at diagnosis. Results: A total of 1, 151, 724 cases of breast cancer were identified from 2010 through 2014, with the triple‐negative phenotype accounting for approximately 8.4% of all cases. In unadjusted analyses, non‐Hispanic black women (odds ratio [OR], 2.27; 95% CI, 2.23‐2.31) and Hispanic women (OR, 1.22; 95% CI, 1.19‐1.25) had higher odds of diagnosis when compared with non‐Hispanic white women. Women aged <40 years had the highest odds of diagnosis compared with women aged 50 to 64 years (OR, 1.95; 95% CI, 1.90‐2.01). Diagnosis at American Joint Committee on Cancer stage III and beyond conferred higher odds of the diagnosis of TNBC (OR for stage III, 1.69 [95% CI, 1.68‐1.72]; and OR for stage IV, 1.47 [95% CI, 1.43‐1.51]). Results varied slightly in adjusted analyses. Conclusions: The results of the current study demonstrated that there is a significant burden of disease in TNBC diagnosed among women of color, specifically non‐Hispanic black women, and younger women. Additional studies are needed to determine drivers of disparities between race, age, and stage of disease at diagnosis. Abstract : In this study, triple‐negative breast cancer is found to have accounted for approximately 8.4% of breast cancer cases diagnosed from 2010 through 2014. There is a significant burden of disease in triple‐negative breast cancer for women of color, specifically non‐Hispanic black women, and younger women.