title: [Relationship between serum ferritin levels and susceptibility to attention deficit hyperactivity disorder in children: a Meta analysis].
abstract: OBJECTIVE
  To study the possible relationship between serum ferritin levels and susceptibility to attention deficit hyperactivity disorder (ADHD) in children.
  
  
  METHODS
  The papers relating to the relationship between serum ferritin levels and susceptibility to childhood ADHD were searched in the Database CBM, CNKI, VIP and PubMed. The Meta-analysis software RevMan 5.0 was used for the heterogeneity test and for the pooled OR calculation. Sensitivity and publication bias analysis were performed.
  
  
  RESULTS
  Five control studies were included for the Meta analysis, including 258 cases of ADHD and 138 control cases. There was heterogeneity in the studies on the relationship between serum ferritin levels and susceptibility to childhood ADHD (P=0.003). So the studies were analyzed using the random-effect model. The pooled OR of serum ferritin levels and susceptibility to childhood ADHD was -23.09 (95%CI:-33.06-13.13; P<0.00001). The funnel plots did not indicate the existence of publication bias.
  
  
  CONCLUSIONS
  The results from present Meta analysis can prove that serum ferritin levels are associated with susceptibility to childhood ADHD.
authors.affiliation: Zhengzhou Children's Hospital, Zhengzhou, China.
authors.forename: Li-Na
authors.initials: LN
authors.lastname: Tan
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Wei
authors.forename: Yao-Dong
authors.initials: YD
authors.lastname: Zhang
authors.forename: Ai-Lian
authors.initials: AL
authors.lastname: Lu
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000097:blood / Q000209:etiology*; D002648:Child; D005293:Ferritins / Q000097:blood*; D006801:Humans
chemical_list: D005293:Ferritins