Table 4. Most advanced lesion detected during screening colonoscopy according to risk check.

	Total* N = 1396		With risk check n = 690		Without risk check n = 706		p Risk check
	n	%	n	%	n	%
Colorectal cancer	4	0.3	3	0.4	1	0.1	0.31
Advanced adenoma	91	6.5	46	6.7	45	6.4	0.82
Non-advanced adenoma	218	15.6	104	15.1	114	16.2	0.58
Advanced neoplasia(colorectal cancer or advanced adenoma)	95	6.8	49	7.1	46	6.5	0.66
Neoplasia (colorectal cancer or adenoma)	313	22.4	153	22.2	160	22.7	0.83

p Risk check = p value for difference in detection rates according to risk check

*1396 participants (88.7%) with survey form could be allocated to risk check.