Table 1.

Inclusion and exclusion criteria used to screen participants.

Inclusion Criteria	Exclusion Criteria
A previously established diagnosis of IBD	Active hepatobiliary disease (including primary sclerosing cholangitis)
Clinically scheduled colonoscopy	Intravenous antibiotic use or oral consumption of antibiotics within the prior 4 weeks
18 years of age or older	Chronic musculoskeletal pain from osteoarthritis or fibromyalgia
	A history of diverticulitis
	A history of non IBD-associated arthritis EIM without a concurrent history of IBD-associated arthritis
	Current therapeutic anticoagulation, history of thrombocytopenia, or coagulopathy (platelets <50,000, INR >2, or PTT>50); or previous biopsy complications (e.g., severe bleeding)