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Canadian Journal of Gastroenterology
Volume 19, Issue 7, Pages 412-414
Helicobacter Pylori Consensus Update 2004

The Changing Prevalence of Helicobacter Pylori Infection in Canadian Children: Should Screening Be Performed in High-Risk Children?

Kevan Jacobson

Department of Pediatrics, Division of Gastroenterology, British Columbia Institute for Children’s and Women’s Health, University of British Columbia, Vancouver, British Columbia, Canada

Copyright © 2005 Canadian Association of Gastroenterology. This open-access article is distributed under the terms of the Creative Commons Attribution Non-Commercial License (CC BY-NC) (, which permits reuse, distribution, and reproduction of the article, provided that the original work is properly cited and the reuse is restricted to noncommercial purposes.


While several studies have demonstrated a decline in the overall prevalence of Helicobacter pylori infection in developed countries, there is variability in the burden of infection linked to socioeconomic status and living conditions. Improved socioeconomic status, living conditions and the availability of H pylori-eradication therapy have been associated with a lower prevalence of infection in First World populations, yet immigrants and indigenous people continue to have a high burden of H pylori infection and disease. Although the changing prevalence of H pylori infection in children has been recognized in a few reports, further studies are required to determine the impact of H pylori infection in this population. Moreover, additional studies are required for those populations at risk.