Table 2.

Association between ABC method and each score of atrophy, intestinal metaplasia, enlarged folds, nodularity, and diffuse redness

Group	A	B	C	D	p value
Atrophy score, mean (SD)	0.77 (0.60)	1.24 (0.49)	1.64 (0.46)	1.69 (0.42)	<0.001
Intestinal metaplasia score, mean (SD)	0.42 (0.68)	0.53 (0.72)	0.68 (0.74)	1.19 (0.60)	<0.01
Diffuse redness score, mean (SD)	0.67 (0.68)	1.81 (0.27)	1.94 (0.20)	1.56 (0.51)	<0.001
Nodularity score, mean (SD)	0.14 (0.33)	0.44 (0.37)	0.44 (0.37)	0.19 (0.36)	<0.01
Enlarged folds score, mean (SD)	0.19 (0.36)	0.59 (0.31)	0.45 (0.37)	0.31 (0.40)	<0.001

The p value was calculated by Kruskal-Wallis test.