Background: Perianal fistula (PAF), a complication of Crohn's disease (CD), is associated with substantial economic costs and poor prognosis. We determined prevalence of PAF CD in the United States and compared costs and health care resource utilization (HRU) of PAF CD patients with matched non-PAF CD patients.
Methods: This was a retrospective cohort study of claims data from the IBM MarketScan Commercial Database from October 1, 2015, to September 30, 2018.