MedicalResearch.com Interview with: Daniel P. Schauer, MD, MSc Associate Professor, Internal Medicine University of Cincinnati College of Medicine Division of General Internal Medicine Cincinnati OH 45267-0535 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Obesity is associated with many types of cancer and bariatric surgery is the most effective treatment for severe obesity.  We conducted a retrospective cohort study of patients undergoing bariatric surgery between 2005 and 2012 with follow-up through 2014 using data from Kaiser Permanente using 5 study sites. The study included 22,198 patients who had bariatric surgery matched to 66,427 nonsurgical patients with severe obesity. We found that bariatric surgery was associated with a reduced risk of cancer.  The risk reduction was greatest for the cancers that are associated with obesity including postmenopausal breast, endometrial, colon, and pancreatic cancers, as well as esophageal adenocarcinoma. (more…)