Bariatric Surgery May Eliminate Obesity-Related Breast Cancer Risk
Bariatric Surgery May Eliminate Obesity-Related Breast Cancer Risk suggests a new study published in the JAMA Surgery
Excess adiposity confers higher risk of breast cancer for women. For women who have lost substantial weight, it is unclear whether previous obesity confers residual increased baseline risk of breast cancer compared with peers without obesity.
A study was done to determine whether there is a residual risk of breast cancer due to prior obesity among patients who undergo bariatric surgery.
Retrospective matched cohort study of 69 260 women with index date between January 1, 2010, and December 31, 2016. Patients were followed up for 5 years after bariatric surgery or index date. Population-based clinical and administrative data from multiple databases in Ontario, Canada, were used to match a cohort of women who underwent bariatric surgery for obesity (baseline body mass index [BMI] ≥35 with comorbid conditions or BMI ≥40) to women without a history of bariatric surgery according to age and breast cancer screening history. Nonsurgical controls were divided into 4 BMI categories (<25, 25-29, 30-34, and ≥35). Data were analyzed on October 21, 2021.
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