Table.

Adjusted three-month risk of infective endocarditis (95% CI) by type of colonoscopy and by the presence of risk for infective endocarditis in the symptomatic population, cases per 10,000.

	Risk	Excess Risk
All
Colonoscopy with polypectomy or biopsy	7.9 (6.1, 9.9)	4.2 (2.3, 6.1)
Colonoscopy without polypectomy or biopsy	5.6 (3.5, 7.5)	1.8 (−2.2, 3.8)
No colonoscopy	3.7 (3.6, 3.9)	Ref.
High risk
Colonoscopy with polypectomy or biopsy	13.5 (10.2, 17.0)	7.3 (4.0, 10.8)
Colonoscopy without polypectomy or biopsy	8.6 (5.7, 12.2)	2.3 (−0.7, 5.9)
No colonoscopy	6.3 (6.0, 6.5)	Ref.
Low risk
Colonoscopy with polypectomy or biopsy	1.7 (0.5, 3.0)	0.7 (−0.4, 2.0)
Colonoscopy without polypectomy or biopsy	2.0 (0.4, 4.0)	1.1 (−0.5, 3.1)
No colonoscopy	1.0 (0.9, 1.1)	Ref.