Adverse events related to colonoscopy: Global trends and future challenges

Table 4 Perforation rates per colonoscopy indication and procedure type from recent studies with sample sizes > 50,000 cases (%)

Ref.	Indication		Procedure
	Screening/surveillance	Symptomatic/diagnostic	Without polypectomy	With polypectomy
Sieg et al[27]	-	-	0.005	0.063
Crispin et al[46]	0.040	0.030	-	-
Warren et al[47]	0.056	0.050	0.052	0.070
Arora et al[72]	0.067	0.086	0.077	0.077
Pox et al[30]	0.016	-	0.012	0.046
Hamdani et al[73]	0.010	0.268	0.010	0.037
Rutter et al[52]	0.063	-	0.031	0.091
Bielawska et al[16]	0.011	0.022	-	-