title: [Correlation between serum vitamin D level and severity of community acquired pneumonia in young children].
abstract: OBJECTIVE
  To study the correlation between serum vitamin D level and severity of community acquired pneumonia (CAP) in young children, and explore related risk factors for CAP.
  
  
  METHODS
  One hundred and three children with CAP between October 2011 and April 2012 were enrolled in the study, including 15 cases of severe CAP and 88 cases of mild CAP. Ninety healthy children were used as the control group. 25-(OH)D(3) concentrations were measured by enzyme linked immunoassay.
  
  
  RESULTS
  The mean vitamin D concentration in the severe CAP group was significantly lower than in the mild CAP and control groups (P < 0.01), and there was no significant difference between the mild CAP and control groups (P = 0.674). Premature birth and vitamin D < 50 nmol/L were risk factors for severe CAP in the multivariate analysis.
  
  
  CONCLUSIONS
  Vitamin D deficiency might be associated with the severity of CAP in young children.
authors.affiliation: Children's Hospital of Soochow University, Suzhou, Jiangsu 215003, China. xing_feng66@hotmail.com.
authors.forename: Jing
authors.initials: J
authors.lastname: Ren
authors.forename: Bin
authors.initials: B
authors.lastname: Sun
authors.forename: Po
authors.initials: P
authors.lastname: Miao
authors.forename: Xing
authors.initials: X
authors.lastname: Feng
mesh_terms: D002675:Child, Preschool; D017714:Community-Acquired Infections / Q000097:blood / Q000209:etiology*; D005260:Female; D006801:Humans; D007223:Infant; D016015:Logistic Models; D008297:Male; D011014:Pneumonia / Q000097:blood / Q000209:etiology*; D012720:Severity of Illness Index; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood; D014808:Vitamin D Deficiency / Q000150:complications
chemical_list: D014807:Vitamin D; C104450:25-hydroxyvitamin D