Weight Loss Surgery May Lower Risk of Breast Cancer, Research Suggests

Weight Loss Surgery May Lower Risk of Breast Cancer, Research Suggests
Weight loss surgery may reduce the risk of developing breast cancer in obese individuals, even among those with a genetic predisposition towards cancer, new research suggests. The research was presented at the American Society for Metabolic and Bariatric Surgery (ASMBS) Annual Meeting at ObesityWeek 2019, in a session titled "Does Bariatric Surgery prevent cancer in the obese population? A nationwide case-control analysis." Although it's not totally clear why the link exists, obesity is associated with an increased risk of developing several types of cancer, including breast cancer. Weight loss surgery, also called bariatric surgery, is one of the most effective procedures for weight loss; as such, it follows that this surgery may reduce breast cancer risk. To test this idea, researchers analyzed data from the National Inpatient Sample. This included data for 1,670,035 obese women, 246,668 of whom underwent bariatric surgery and 1,423,367 of whom did not. For the analysis, obesity was defined as a body mass index (BMI) of 35 kg/m2. BMI — a ratio of a person's weight and height — doesn't convey much information about body fat, but in large datasets like this, a very high BMI can generally indicat
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