Of the 303 breast cancer survivors, 179 had received treatment within five years of T1 and 123 had received treatment more than five years before T1. About 50 percent reported receiving chemotherapy, and about two-thirds reported receiving hormonal therapy. Sixty-eight percent of the breast cancer survivors and 72 percent of the cancer-free women had reported baseline physical activity that met the American Heart Association recommendations.
Author Comment: In an interview, study's senior author Visvanathan said, "Our study showed that women diagnosed with breast cancer and those who received chemotherapy to treat their breast cancer gained more weight within the first five years of diagnosis and treatment than cancer-free women. This study highlights the need for physicians and their patients, including those with a family history of the disease, to pay closer attention to weight gain during and after treatment," Visvanathan said. "Longer follow-up is needed to confirm the persistence of weight gain in breast cancer survivors and understand the metabolic changes that may be occurring," Visvanathan cautioned.
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Of the women treated with chemotherapy within the past five years, 21 percent gained at least 11 pounds over follow up. "This is of concern because weight gain of this magnitude in adults has been associated with increased future risk for chronic diseases like coronary heart disease, hypertension, and type 2 diabetes," said the paper's first author, Amy Gross, MHS, doctoral candidate in the department of epidemiology at Bloomberg School of Public Health. "We are continuing to follow our study participants to track weight-gain patterns over a longer period of time," Gross added.
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Funding & Disclosures: This study was funded by the Breast Cancer Research Foundation and the National Institutes of Health. Visvanathan and Gross declare no conflicts of interest.
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About the American Association for Cancer Research
Founded in 1907, the American Association for Cancer Research (AACR) is the world's oldest and largest professional organization dedicated to advancing cancer research and its mission to prevent and cure cancer. AACR membership includes more than 35,000 laboratory, translational, and clinical researchers; population scientists; other health care professionals; and cancer advocates residing in 101 countries. The AACR marshals the full spectrum of expertise of the cancer community to accelerate progress in the prevention, biology, diagnosis, and treatment of cancer by annually convening more than 25 conferences and educational workshops, the largest of which is the AACR Annual Meeting with almost 19,300 attendees. In addition, the AACR publishes eight prestigious, peer-reviewed scientific journals and a magazine for cancer survivors, patients, and their caregivers. The AACR funds meritorious research directly as well as in cooperation with numerous cancer organizations. As the Scientific Partner of Stand Up To Cancer, the AACR provides expert peer review, grants administration, and scientific oversight of team science and individual investigator grants in cancer research that have the potential for near-term patient benefit. The AACR actively communicates with legislators and other policymakers about the value of cancer research and related biomedical science in saving lives from cancer. For more information about the AACR, visit http://www.AACR.org.
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