Expression of cytokeratins in Helicobacter pylori –associated chronic gastritis of adult patients infected with cagA+ strains: An immunohistochemical study

Table 1 Antral histology according to Sydney classification of gastritis in patients with and without Helicobacter pylori infection

Antral mucosa(Sydney classification)	H pylori+(n=57)	H pylori-(n=17)	P
Inflammatory infiltrate
0	0	1	0.000
1	19	14
2	31	2
3	7	0
Activity of inflammation
0	2	9	0.000
1	39	6
2	15	2
3	1	0
Atrophy
0	45	13	NS
1	12	4
H pylori-colonization density
0	0	17
1	19	0
2	25	0
3	13	0

H pylori+: Helicobacter pylori positive patients; H pylori -: Helicobacter pylori negative patients; NS: P > 0.05.