Helicobacter pylori infection: Detection, investigation, and management

Prevalence of H pylori infection by age in developing and developed countries. Overall prevalence and age at which H pylori infection is acquired varies substantially between developing and developed countries. Overall estimates are that approximately 70% of children in developing countries are infected with H pylori by age 15 as compared with approximate 10% infection rate prevalence in developed countries. Reproduced from Logan RP, Walker MM. ABC of the upper gastrointestinal tract: epidemiology and diagnosis of Helicobacter pylori infection. Br Med J 2001;323:920-2, with permission from the BMJ Publishing Group.

Age-specific H pylori seroprevalence rates in Bolivian, Native Alaskan, and US children (0 to 9 years of age). Bolivian and Native American children have similar rates of H pylori acquisition, with the majority becoming infected by approximately 6 years of age. Gold BD. New approaches to Helicobacter pylori infection in children. Curr Gastroenterol Rep 2001;3:235-47.