title: [Epidemiological survey on iodine nutrition of 8-10 year old school children in Wuqiao county of Hebei Province].
abstract: OBJECTIVE
  To assess the nutritional status of iodine in school children of Wuqiao County in Hebei Province.
  
  
  METHODS
  1209 school children aged 8-12 years were selected by multistage random sampling. Thyroid size estimated by inspection and palpation was graded according to the criteria recommended by WHO. The concentration of urinary iodine and iodine in salt was also measured.
  
  
  RESULTS
  There were 74 goiter cases, accounted for 6.1% of total students investigated. The median of urinary iodine was 208 microg/L and the median of iodine intake was 312 microg/d. The excretion of urinary iodine at <100 microg/L, <50 microg/L, 200-300 microg/L and 300 microg/L accounted for 18.5%, 4.6%, 27.2% and 26.5% of total detected samples respectively. The coverage of iodized salt in the area was 77% and the iodine in iodized salt was at a median of 26.96 mg/kg.
  
  
  CONCLUSIONS
  Goiter is endemic in Wuqiao County of Hebei Provinee. Urinary iodine of school children was more than the optimal range, and the iodine nutrition was excessive in this area.
authors.affiliation: School of Public Health, Hebei Medical University, Shijiazhuang 050017, China. fengcl1975@126.com
authors.forename: Changlong
authors.initials: C
authors.lastname: Feng
authors.forename: Dianwu
authors.initials: D
authors.lastname: Liu
authors.forename: Xiaopu
authors.initials: X
authors.lastname: Wang
authors.forename: Qun
authors.initials: Q
authors.lastname: Wei
authors.forename: Liqin
authors.initials: L
authors.lastname: Wang
mesh_terms: D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006042:Goiter / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D007455:Iodine / Q000008:administration & dosage / Q000737:chemistry / Q000652:urine*; D008297:Male; D008403:Mass Screening; D015995:Prevalence; D017673:Sodium Chloride, Dietary
chemical_list: D017673:Sodium Chloride, Dietary; C034024:iodized salt; D007455:Iodine