The Comparison of Surgery and Medicine on the Impact of Diverticulitis (COSMID) study is a randomized trial of elective colectomy vs. best medical management for patients with quality of life limiting diverticulitis. The COSMID trial focuses on both patient-reported outcomes and clinical outcomes that matter to patients. The results are expected to establish an evidence-based approach to the care of millions of patients per year in the United States and help people impacted by this common condition make more informed treatment decisions. 

Research reported on this website is funded through a Patient-Centered Outcomes Research Institute (PCORI) (PCS-2018C1-10949) Award.

The statements on this website are solely the responsibility of the authors and do not necessarily represent the views of the Patient-Centered Outcomes Research Institute (PCORI), its Board of Governors or Methodology Committee.