title: [Meta-analysis on the epidemiology of Helicobacter pylori infection in China].
abstract: OBJECTIVE
  To understand the epidemiologic features and etiology of Helicobacter pylori (H. pylori) infection in China so as to provide evidence for the development of preventive measures on H. pylori infection and related diseases.
  
  
  METHODS
  Meta-analysis was used to evaluate the data extracted from 1990 - 2002 published papers on the epidemiology of H. pylori infection in China.
  
  
  RESULTS
  The average infection rate of H. pylori infection in China was 58.07%, with 50% in 10 to 20 year-olds. Significant intrafamilial clustering was observed. H. pylori infection was a risk factor to develop gastrointestinal disease.
  
  
  CONCLUSIONS
  H. pylori infections in Chinese were common and extensively distributed, which might due to close contact between family members.
authors.affiliation: Department of Epidemiology and Statistics, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Kai-juan
authors.initials: KJ
authors.lastname: Wang
authors.forename: Run-tian
authors.initials: RT
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D005190:Family; D005260:Female; D016481:Helicobacter Infections / Q000150:complications / Q000453:epidemiology*; D016480:Helicobacter pylori; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000209:etiology