Table 1.

Histological and immunohistochemical findings at enrollment (T0).

	H. pylori POSITIVE N = 31	H. pylori NEGATIVE N = 12	P
Male sex, n (%)	10 (32.2)	3 (25.0)	0.73
Age, mean (SD)	49 (14)	41 (13)	0.1
Gastritis activity,mean (SEM)
Antrum	1.32 (0.12)	0	<0.0001
Body	0.94 (0.15)	0	0.002
Gastritis chronicity, mean (SEM)
Antrum	1.81 (0.13)	0.33 (0.14)	<0.0001
Body	1.42 (0.13)	0.55 (0.15)	0.02
Gastric atrophy,n (%)
Antrum	4 (13)	1 (8.3)	1
Body	4 (13)	1 (8.3)	1
Intestinal metaplasia, n (%)
Antrum	6 (19)	0	0.16
Body	4 (13)	0	0.55
H. pylori density,median (SEM)
Antrum	2.2 (0.13)	0	<0.0001
Body	1.7 (1.7)	0	<0.0001
p53, mean (SEM)
Antrum	1.53 (0.16)	0.92 (0.26)	0.065
Body	1.27 (0.19)	0.75 (0.32)	0.083
Cyclin D1, mean (SEM)
Antrum	0.27 (0.8)	0.33 (0.14)	0.669
Body	0.17 (0.07)	0	0.12 9
ki67 labeling index, mean (SEM)
Antrum	9.84 (0.96)	6.0 (1.16)	0.008
Body	8.71 (1.24)	5.25 (0.44)	0.107