Groundbreaking Study Led by the Crohn’s & Colitis Foundation Estimates Nearly 1 in 100 Americans Has Inflammatory Bowel Disease (IBD) (Crohn’s & Colitis Foundation)

A groundbreaking study led by the Crohn’s & Colitis Foundation published today in Gastroenterology estimates the incidence, prevalence, and racial-ethnic distribution of physician-diagnosed IBD in the United States, using comprehensive health insurance claims data. The study, conducted by principal investigators at the Foundation, the University of Pennsylvania, University of North Carolina at Chapel Hill, and Carelon Research, finds that IBD is diagnosed in more than 0.7% of Americans, with 721 cases per 100,000 people, or nearly 1 in 100.