Table 3.

A-B classification of atrophy of the entire mucosa and status of the mucosa at the GIST site in H. pylori-positive and -negative patients.

	B-0	B-1	B-2	B-3	A0	A1	A2
H. pylori-negative (n = 23)
Atrophy (—)	22				1
C-type
O-type
H. pylori-positive (n = 23)
Atrophy (—)
C-type	4	4	8			1
O-type		1	4	1

C-type: closed-type atrophy, O-type: open-type atrophy.