title: [Meta-analysis on Helicobacter pylori infection between sex and in family assembles].
abstract: OBJECTIVE
  To understand and analyze the infection situation of Helicobacter pylori (H. pylori).
  
  
  METHODS
  Extensively reviewing Chinese literature collecting the related with electronic documents in combination with manual retrieve and using Meta-analysis to do a quantitative analysis.
  
  
  RESULTS
  Slight difference in the infection rate of H. pylori between men and women (95% CI: 0.0579-0.0963) was noticed. The infection rate of H. pylori in children whose parent was positive with infection of this bacteria was higher than that of children whose parent was negative (95% CI: 0.3378-0.5042).
  
  
  CONCLUSIONS
  The infection rate of H. pylori showed gender difference with nature of family aggregation. Epidemiological studies of H. pylori was comprehensive and involved many aspects. Further investigation needs to be focused on infection rate and other risk factors.
authors.affiliation: Department of Health Statistics, The Fourth Military Medical University, Xi'an 710032, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wan
authors.forename: Yong-yong
authors.initials: YY
authors.lastname: Xu
authors.forename: Fu-bo
authors.initials: FB
authors.lastname: Xue
authors.forename: Dai-ming
authors.initials: DM
authors.lastname: Fan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000907:Antibodies, Bacterial / Q000097:blood; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D005192:Family Health; D005260:Female; D016481:Helicobacter Infections / Q000453:epidemiology* / Q000635:transmission; D016480:Helicobacter pylori / Q000276:immunology; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D012737:Sex Factors
chemical_list: D000907:Antibodies, Bacterial