Prevalence of H.pylori infection in junior high school students

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We conducted an epidemiologic study to estimate the prevalence of H.pylori infection among junior high school students in Nagano Prefecture. The serum antibodies to H. pylori were examined using an antibody determination kit. Overall, the prevalence of H.pylori was 3.1% (14/454) among junior high school students. There were no apparent differences in the prevalence of H.pylori infection between rural and urban areas. We also measured serum pepsinogen, and the results showed that both serum pepsinogen 1 and pepsinogen 2 were increased among students infected with H.pylori.