title: [Study on the vitamin a nutrition status in plasma of children at the ages of 3-12 years in different Chinese rural areas].
abstract: OBJECTIVE
  To know the Vitamin A nutrition status of children at the ages of 3-12 years in different Chinese rural areas.
  
  
  METHODS
  Blood samples were drown from 88 investigated counties of National Nutrition and Health Survey 2002,while each age group of children from boys and girls 6 blood samples were drown respectively. All blood samples were determined with HPLC.
  
  
  RESULTS
  In coastal,interior and western area,the vitamin A deficiencies of at the ages of 3-12 years children were 5.5%, 15.4%, 10.2%, and the marginal vitamin A deficiencies were 40.5%, 53.8%, 50.1%. The vitamin A deficiencies and the marginal vitamin A deficiencies in coastal area could be lower than in interior and western area.
  
  
  CONCLUSIONS
  The vitamin A nutrition status is related with the geographic, food intake and life style.
authors.affiliation: National Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
authors.forename: Deqian
authors.initials: D
authors.lastname: Mao
authors.forename: Ning
authors.initials: N
authors.lastname: Guo
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Yuna
authors.initials: Y
authors.lastname: He
mesh_terms: D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D002851:Chromatography, High Pressure Liquid; D005260:Female; D006801:Humans; D008297:Male; D009752:Nutritional Status; D015995:Prevalence; D012423:Rural Health; D012494:Sampling Studies; D014801:Vitamin A / Q000097:blood*; D014802:Vitamin A Deficiency / Q000453:epidemiology*
chemical_list: D014801:Vitamin A