Prediction Model for Complex Diverticulitis and Comparison of Outcomes for Diverticulitis in Turkish Versus American Patients Who Underwent Elective Surgery

Background: Diverticulitis is separated into complicated and uncomplicated, based on the patient’s presentation at the time of their initial attack of acute diverticulitis. The aim of this study was to identify risk factors for persistent complex diverticulitis, defined as an abscess, fistula, or stricture, at the time of elective surgery, and characterize outcomes in this patient population. Method: This was a retrospective review of the 2010–2016 in the American College of Surgeons National Surgical Quality Improvement Project database. Individuals diagnosed with diverticulitis who underwent elective surgery were included. 1502 patients underwent elective surgery for diverticulitis, of which 559 (37%) patients had a surgical indication of persistent complex diverticulitis. We performed logistic regression analysis to identify risk factors for complex diverticulitis and evaluated a new prediction model. Results: The patients with complex diverticulitis were older (p