Résumé :
|
[BDSP. Notice produite par INIST 8g1R0xQ3. Diffusion soumise à autorisation]. Background Helicobacter pylori infection and atrophic gastritis (AG) are markedly more prevalent in Japan than in other industrialized countries, however, the reasons for such a high prevalence are not fully understood. To add to information on H. pylori infection and its association with AG, the authors studied Japanese living in less developed countries. Methods Cross-sectional surveys were conducted of randomly selected Japanese residents aged 40-59 years in Sao Paulo, Brazil and Lima, Peru. Serum IgG antibody to H. pylori and pepsinogen I (PGI) and II (PGII) were measured as markers of AG. Results The prevalence of H. pylori infection was similar in both populations, 77% (95% CI : 70-83) in Sao Paulo and 75% (95% CI : 65-82) in Lima, and was within the range of five populations in Japan from our previous study. However, the prevalence of AG, defined by PGI
|