TABLE 4.

Agreement Between Evaluations by the Investigators and Judgments by the Image Assessment Committee

		Evaluations by the Investigators
n = 114		0	1	2	3	Total
Judgments by committee	0	41	7	0	0	48	Proportion of agreement (%) 69.3
	1	13	34	10	0	57
	2	0	3	4	2	9
	3	0	0	0	0	0	Cohen's κ coefficient 0.486
	Total	54	44	14	2	114

Proportion of agreement (%) = (number of agreement cases) / (number of cases confirmed by colonoscopy) × 100

In this trial, 131 patients were allocated to an intervention. The data of 16 patients had to be excluded from the analysis because the mucosal appearance score was missing, and the data of one patient had to be excluded from the analysis because of a GCP violation.