Table 1.

Histological characteristics of gastric lesions in children with gastritis without H. pylori (negative) and children with gastritis who were infected with H. pylori (positive) based on the updated Sydney system

Gastritis	Infection with H. pylori	N = 25	Activity	Atrophy	Metaplasia
Chronic	Negative	5 (55.5%)	1	L	N
Follicular chronic	Negative	2 (22.25%)	0	N	N
Reactive gastropathy	Negative	2 (22.25%)	0	N	Intestinal
Chronic	Positive	10 (62.5%)
		(4)	1	N	N
		(2)	1	L
		(2)	2	L
		(2)	2	M
Follicular chronic	Positive	4 (25%)
		(2)	0	N	N
		(1)	0	L
		(1)	1	L
Reactive gastropathy	Positive	2 (12.5%)	1	N	N

Activity: 0 (null); 1 (mild); 2 (Moderate); 3(severe)

Atrophy: N Negative, L Light, M Moderate