Su Meifang, Wang Congyun, Li Songtao, Ying Xuhua, Zhao Qi, Fu Chaowei, Jiang Qingwu
Yuhuan County Center of Disease Control and Prevention, Taizhou 317600, China.
Wei Sheng Yan Jiu. 2013 Nov;42(6):893-6.
To understand the level of urinary iodine and iodine content of salt among school children aged 8 to 10 years in Yuhuan County, Zhejiang Province.
A cross-sectional study was conducted in a primary school of Yuhuan County purposely selected in 2012. Totally, 450 children aged 8 to 10 years were involved by the cluster-stratified sampling. All subjects received a free physical examination and morning urine and salt using in the household were collected. Urinary iodine and the iodine content of salt the children were tested.
Totally, 449 of 450 children provided the morning urine enough to be tested. The median of children's urinary iodine was 114.0 microg/L, and the proportions of them with the urinal iodine < 50 microg/L, < 100 microg/L and > or = 300 microg/L were 4.4%, 37.9% and 2.7%, respectively. Among 447 salt samples collected, the median of iodine content was 0.0 mg/kg. The coverage rate of iodized salt was 27.3%, the qualified rate of iodized salt was 92.6%, and the intake rate of qualified iodized salt was 25.3%. The median of urinary iodine of children with iodized salt was significantly higher than that of those without iodized salt (Z = 3.47, P = 0.001).
Current nutritional status of iodine is overall proper and safety in the population of school children aged 8-10 years old in Yuhuan County.
了解浙江省玉环县8至10岁学龄儿童尿碘水平及盐碘含量。
2012年在玉环县一所小学开展横断面研究。采用整群分层抽样法，共纳入450名8至10岁儿童。所有研究对象均接受免费体检，并采集晨尿及家中食用盐。检测儿童尿碘及盐碘含量。
450名儿童中，449名儿童提供了足够检测的晨尿。儿童尿碘中位数为114.0μg/L，尿碘<50μg/L、<100μg/L及≥300μg/L的儿童比例分别为4.4%、37.9%和2.7%。447份盐样中，碘含量中位数为0.0mg/kg。碘盐覆盖率为27.3%，碘盐合格率为92.6%，合格碘盐食用率为25.3%。食用碘盐儿童的尿碘中位数显著高于未食用碘盐儿童（Z=3.47，P=0.001）。
玉环县8至10岁学龄儿童人群目前碘营养状况总体适宜、安全。
