Table 2 Location of retained biopsies in total and by procedure.

	Retained biopsy found any location	Retained biopsy found both cap and channel	Retained biopsy found cap only	Retained biopsy found channel only
EGD, esophagogastroduodenoscopy. * statistically significant with threshold P value of 0.05
All procedures N=105	50 (48%)	24 (23%)	20 (19%)	6 (5.7%)
EGD N=55	32 (58%)	16 (29%)	14 (25%)	2 (3.6%)
Colonoscopy N=50	18 (36%)	8 (16%)	6 (12%)	4 (8%)
P value EGD vs. colonoscopy	0.031*	0.162	0.089	0.421