Comparison of Helicobacter pylori infection and gastric mucosal histological features of gastric ulcer patients with chronic gastritis patients

Table 1 H pylori infection and histological features of H pylori infection in chronic gastritis and gastric ulcer patients (n, %).

	H pylori	Mucosal inflammation	Activity	Glandular atrophy	Intestinal metaplasia
Chronic gastritis	55	90	56.2	36.8	37
Gastric ulcer	78.5b	97.4b	82.1b	61.1b	64.2b

^bP<0.01 vs chronic gastritis.

Table 2 Atrophy and intestinal metaplasia in different age groups of patients with chronic gastritis with and without H pylori infection (n, %).

	<31 yr	31-40 yr	41-50 yr	51-60 yr	61-70 yr	>70 yr
Cases	423	515	647	929	885	703
Atrophy
H pylori-positive	25.4	30	54	56.4	63.6	66.3
H pylori-negative	2.5	5.6	8.7	16.1	27.2	34.5
Intestinal metaplasia
H pylori-positive	15.9	20	41.5	53.9	62.8	68.3
H pylori-negative	1.8	4.5	9.9	21.7	34.9	43.1

Table 3 Atrophy and intestinal metaplasia in different age groups of patients with gastric ulcer with and without H pylori infection (n, %).

	<31 yr	31-40 yr	41-50 yr	51-60 yr	61-70 yr	>70 yr
Cases	119	343	745	1098	940	594
Atrophy
H pylori-positive	34.8	54	65.2	66.3	67.8	75.1
H pylori-negative	4.7	14	36.4	46.5	51.9	57.6
Intestinal metaplasia
H pylori-positive	21.1	38	63.6	71	75.1	81
H pylori-negative	4.7	16	47.3	57.1	58.8	65.6