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Home NEWS Science News Health

Study confirms disparities in triple-negative breast cancer diagnoses

Bioengineer by Bioengineer
July 8, 2019
in Health
Reading Time: 3 mins read
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A new study published early online in CANCER, a peer-reviewed journal of the American Cancer Society, shows that women of color and young women may face elevated risks of developing triple-negative breast cancers, which are often aggressive and do not respond to hormone therapy or targeted therapy.

Previous U.S. studies have found racial disparities in triple-negative breast cancer diagnoses, but few have looked beyond the scope of one state. To conduct a larger study, Lia Scott, PhD, MPH, of the Georgia State University School of Public Health, and her colleagues analyzed all breast cancer cases diagnosed during 2010-2014 from the United States Cancer Statistics database, a population-based surveillance system of cancer registries with data representing 99 percent of the U.S. population.

The team identified 1,151,724 cases of breast cancer from 2010-2014, with triple-negative cases accounting for approximately 8.4 percent of all cases. The researchers uncovered a significant burden of triple-negative breast cancer for women of color, specifically non-Hispanic black women, and for younger women.

Compared with non-Hispanic white women, non-Hispanic black women and Hispanic women had 2.3-times and 1.2-times higher odds of being diagnosed with triple-negative breast cancer, respectively. More than 21 percent of non-Hispanic black women were diagnosed with triple-negative breast cancer, compared with less than 11 percent for all other types of breast cancer. Women younger than 40 years of age had twice the odds of being diagnosed with triple-negative breast cancer than women aged 50-64 years. Also, among women who were diagnosed with breast cancer, those diagnosed at late stages were 69 percent more likely to have triple-negative cancer than other types.

The authors noted that due to the aggressive nature of triple-negative breast cancer and the lack of therapeutic options, it is important to know which individuals face a higher risk and what factors may influence this risk.

“With the advent and availability of more comprehensive cancer data, such as the United States Cancer Statistics database, it is important that we continue to explore disparities in order to better inform practice and policy around screenable cancers like breast cancer,” said Dr. Scott. “We hope that this update on the epidemiology of triple-negative breast cancer can provide a basis to further explore contributing factors in future research.”

###

This study was funded by the National Institute on Minority Health and Health Disparities of the National Institutes of Health under award 1F31MD012752.

Additional information

NOTE: The information contained in this release is protected by copyright. Please include journal attribution in all coverage. A free abstract of this article will be available via the Cancer News Room upon online publication. For more information or to obtain a PDF of any study, please contact:

Penny Smith +44 (0) 1243 770448 (UK)

[email protected]

Follow us on Twitter @WileyNews

Full Citation:

“Update on triple-negative breast cancer disparities for the United States – a population-based study from the United States Cancer Statistics database, 2010-2014.” Lia Scott, Lee Mobley, Tzy-Mey Kuo, and Dora Il’yasova. CANCER; Published Online: July 8, 2019 (DOI: 10.1002/cncr.32207).

URL Upon Publication: http://doi.wiley.com/10.1002/cncr.32207

Author Contact: Homma Rafi, Director of Communications at the Georgia State University School of Public Health, at [email protected] or +1 404-413-1504.

About the Journal

CANCER is a peer-reviewed publication of the American Cancer Society integrating scientific information from worldwide sources for all oncologic specialties. The objective of CANCER is to provide an interdisciplinary forum for the exchange of information among oncologic disciplines concerned with the etiology, course, and treatment of human cancer. CANCER is published on behalf of the American Cancer Society by Wiley and can be accessed online.

Follow us on Twitter @JournalCancer

About Wiley

Wiley drives the world forward with research and education. Our scientific, technical, medical, and scholarly journals and our digital learning, certification, and student-lifecycle services and solutions help students, researchers, universities, and corporations to achieve their goals in an ever-changing world. For more than 200 years, we have delivered consistent performance to all of our stakeholders. The Company’s website can be accessed at http://www.wiley.com.

Media Contact
Penny Smith
[email protected]
http://dx.doi.org/10.1002/cncr.32207

Tags: Breast CancercancerDiagnosticsMedicine/HealthPublic Health
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