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Home NEWS Science News

Socially isolated breast cancer patients face higher recurrence and mortality rates

Bioengineer by Bioengineer
December 12, 2016
in Science News
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A new study found that more socially isolated breast cancer survivors had higher rates of recurrence and mortality, while women with larger social networks experienced better outcomes. Published early online in CANCER, a peer-reviewed journal of the American Cancer Society, the study found that some types of social ties were beneficial, while others were not, and that some types of relationships only benefited patients in certain racial or age groups.

For the analysis, Candyce Kroenke, MPH, ScD, of the Kaiser Permanente Division of Research in Oakland, California, and her colleagues examined information on 9267 women with breast cancer to see how patients' social networks within approximately two years following their diagnosis might affect their survival.

Over a median follow-up of 10.6 years, there were 1448 cancer recurrences and 1521 deaths (990 from breast cancer). Compared with socially integrated women, socially isolated women had a 40 percent higher risk of recurrence, a 60 percent higher risk of dying from breast cancer, and a 70 percent higher risk of dying from any cause. These associations were stronger in those with stage I/II cancer. Specific associations differed by age, race/ethnicity, and country of origin. For example, ties to relatives and friends predicted lower breast cancer-specific mortality in non-White women, whereas having a spouse predicted lower breast cancer-specific mortality in older White women. Community ties predicted better outcomes in older Whites and Asians.

"It is well established that larger social networks predict lower overall mortality in healthy populations and in breast cancer patients, but associations with breast cancer-specific outcomes like recurrence and breast cancer mortality have been mixed," said Dr. Kroenke. "These findings, from a large pooled cohort of nearly 10,000 women with breast cancer, confirm the generally beneficial influence of women's social ties on breast cancer recurrence and mortality; however, they also point to complexity, that not all social ties are beneficial, and not in all women."

Dr. Kroenke added that clinicians should assess information on social networks as a marker of prognosis and should consider that critical supports may differ by sociodemographic factors. Also, she stressed the need for additional research to understand the mechanisms through which social networks influence outcomes so that effective interventions might be developed.

###

For more information or to obtain a PDF of any study, please contact [email protected].

Full Citation: "Post-diagnosis social networks and breast cancer mortality in the After Breast Cancer Pooling Project (ABCPP)." Candyce H. Kroenke, Yvonne Michael, Elizabeth M. Poole, Marilyn L. Kwan, Sarah Nechuta, Eric Leas, Bette J. Caan, John Pierce, Xiao-Ou Shu, Ying Zheng, and Wendy Y. Chen. CANCER; Published Online: December 12, 2016 (DOI: 10.1002/cncr.30440).

Author Contact: Janet Byron, Kaiser Permanente Senior Communications Consultant, at [email protected] or +1 (510) 891-3115.

URL Upon Publication: http://doi.wiley.com/10.1002/cncr.30440

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 at http://wileyonlinelibrary.com/journal/cancer. Follow us on Twitter @JournalCancer and Facebook https://www.facebook.com/ACSJournals

About Wiley

Wiley, a global company, helps people and organizations develop the skills and knowledge they need to succeed. Our online scientific, technical, medical, and scholarly journals, combined with our digital learning, assessment and certification solutions help universities, learned societies, businesses, governments and individuals increase the academic and professional impact of their work. For more than 200 years, we have delivered consistent performance to our stakeholders. The company's website can be accessed at http://www.wiley.com.

Media Contact

Dawn Peters
[email protected]

http://www.wiley.com/wiley-blackwell

############

Story Source: Materials provided by Scienmag

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