title: [Study on IgE mediated food allergy of 3 -12 years urban children in China].
abstract: OBJECTIVE
  To study the situation of IgE-mediated food allergy of Chinese urban children, including the rate of food allergy and the main food allergens in children.
  
  
  METHODS
  All the serum samples were selected from the serum bank built by the national nutrition and health survey of Chinese residents. Total IgE of all the samples were tested by enzyme linked immunosorbent assay, and the sIgE of TIgE-positive samples were then tested by immunoblotting.
  
  
  RESULTS
  A total of 5190 samples were selected from serum bank, and the rate of IgE-mediated food allergy was 3.20%. The rate of IgE-mediated food allergy was 2.70% in big cities, while it was 3.77% in small and medium-sized cities. The rate was gradually decreased with age grown.
  
  
  CONCLUSIONS
  The situation of food allergy in children and the main allergens could be preliminary determined by testing the serum total IgE level and specific IgE.
authors.forename: Yichun
authors.initials: Y
authors.lastname: Hu
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.forename: Jianhua
authors.initials: J
authors.lastname: Piao
authors.forename: Yuan
authors.initials: Y
authors.lastname: Tian
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Yang
mesh_terms: D000485:Allergens / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D002681:China; D004797:Enzyme-Linked Immunosorbent Assay; D005512:Food Hypersensitivity / Q000097:blood* / Q000453:epidemiology / Q000276:immunology; D006801:Humans; D007073:Immunoglobulin E / Q000097:blood*; D014505:Urban Population
chemical_list: D000485:Allergens; D007073:Immunoglobulin E