Reference

Country

n

Year follow up

Gastric atrophy

Intestinal Metaplasia

Annibale et al.

Italy

40

32

improved

improved

Ito et al.

Japan

26

60

improved

improved

Kokkola et al.

Finland

22

30

improved

improved

Leug et al.

China

587

60

Slowed progression

Slowed progression