Potential Benefits and Harms of Gastric Bypass Surgery in Obese Individuals With Type 1 Diabetes: A Nationwide, Matched, Observational Cohort Study

OBJECTIVE To study the potential long-term benefits and possible complications of bariatric surgery in patients with type 1 diabetes (T1D). RESEARCH DESIGN AND METHODS In this register-based nationwide cohort study, we compared individuals with T1D and obesity who underwent Roux-en-Y gastric bypass (RYGB) surgery with patients with T1D and obesity matched for age, sex, BMI, and calendar time that did not undergo surgery. By linking the Swedish...