Efficacy of cap-assisted colonoscopy according to lesion location and endoscopist training level

Table 3 Adenoma detection with cap-assisted colonoscopy vs standard colonoscopy on the all ages and both genders n (%)

Whole colon	Total (n = 1023)	CAC (n = 515)	SC (n = 508)	P value
Total adenomas	623	370	253	0.003
Adenomas per patient	0.61 ± 1.18	0.72 ± 1.32	0.50 ± 1.01	0.003
ADR	328 (32.1)	184 (35.7)	144 (28.3)	0.011
Right-side colon	Total (n = 1023)	CAC (n = 515)	SC (n = 508)	P value
Total adenomas	365	236	129	< 0.001
Adenomas per patient	0.36 ± 0.84	0.46 ± 0.97	0.25 ± 0.67	< 0.001
ADR	225 (22.0)	139 (27.0)	86 (16.9)	< 0.001
Adenomas of segment	Total (n = 1023)	CAC (n = 515)	SC (n = 508)	P value
Cecum	45	20	25	0.490
Ascending colon	179	129	50	< 0.001
Hepatic flexure	62	44	18	0.002
Transverse colon	79	43	36	0.529
Splenic flexure	28	22	6	0.003
Descending colon	46	23	23	0.966
Sigmoid colon	130	61	69	0.490
Rectum	54	28	26	0.829

CAC: Cap-assisted colonoscopy; SC: Standard colonoscopy; ADR: Adenoma detection rate.