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  • Title: [Survey on iodine nutrition in high water regions of children, adult and the third trimester pregnant women in China].
    Author: Ren X, Sang Z, Shen J, Liu H, Wei W, Zhang G, Chen W, Zhang W.
    Journal: Wei Sheng Yan Jiu; 2013 Nov; 42(6):966-9. PubMed ID: 24459910.
    Abstract:
    OBJECTIVE: To investigate the iodine nutrition status of the susceptible population after stop supplying iodized salt and discuss whether there is iodine nutritional status difference in different populations in high-iodine areas in China. METHODS: Spot investigation methods were being used, 371 children, 506 adults and 210 cases of pregnant women during the third trimester were selected as respondents. The morning Urine was collected to determinate the urine iodine level. Drinking water was collected to determinate the local water iodine level. RESULTS: The water iodine level was between 150.3-962.6 microg/L in investigation areas; The median urinary iodine (MUI) of children, adults and pregnant woman was respective 1032.08 microg/L, 1152.01 microg/L and 1240.70 microg/L. Meanwhile 96.2% children and 93.1% adults urine iodine level was more than 300 microg/L and 84.3% of pregnant women urine iodine level was more than 500 microg/L, which belongs to excessive iodine intake. The chi-square test on the distribution of urinary iodine indicate that there is statistical differences in three different population (chi2 = 44.84, P = 0.000). Kruskal-Wallis H test show that the MUI in three different crowd are not all the same (chi2 = 12.83, P = 0.002), when compared by pairs, the difference in MUI between pregnant and children or adults was founded. CONCLUSION: The iodine nutrition status of children, adult and the third trimester pregnant women in high water regions were iodine excess. The monitor on iodine nutrition status in different peoples should be enhanced. Urinary iodine level of Children can't completely represent the iodine nutritional status of pregnant women, iodine nutritional status monitor standard for pregnant women should be established.
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