title: [Association of human parvovirus B19 infection and childhood idiopathic thrombocytopenic purpura: a meta analysis of Chinese literatures].
abstract: OBJECTIVE
  To study the relationship between human parvovirus B19 infection and childhood idiopathic thrombocytopenic purpura (ITP) by the principle of evidence based medicine.
  
  
  METHODS
  Papers related to the relationship between human parvovirus B19 infection and childhood ITP published between 1994 and 2008 were retrieved electronically from the Chinese Journals Full-text Database and the Wanfang Data. These relevant papers on case-control trials were statistically studied by meta analysis.
  
  
  RESULTS
  Eight papers that met the inclusion criteria were included for this meta analysis. Five hundred and sixteen cases of childhood ITP and 246 healthy controls were enrolled. The meta analysis showed that the incidence of human parvovirus B19 infection in the ITP group was significantly higher than that in the control group (OR=13.71, 95% CI=7.07-26.59, Z=7.75, p<0.01).
  
  
  CONCLUSIONS
  Human parvovirus B19 infection is closely associated with childhood ITP.
authors.affiliation: Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
authors.forename: Yao-Dong
authors.initials: YD
authors.lastname: Zhang
authors.forename: Qun
authors.initials: Q
authors.lastname: Hu
authors.forename: Shuang-You
authors.initials: SY
authors.lastname: Liu
authors.forename: Ai-Guo
authors.initials: AG
authors.lastname: Liu
authors.forename: Guan-Ling
authors.initials: GL
authors.lastname: Wang
authors.forename: Hao
authors.initials: H
authors.lastname: Xiong
authors.forename: Yan
authors.initials: Y
authors.lastname: Sun
mesh_terms: D002648:Child; D016731:Erythema Infectiosum / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D016553:Purpura, Thrombocytopenic, Idiopathic / Q000209:etiology*