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International Journal of Endocrinology and Metabolism
Forty schoolchildren aged 7-13 years, from the previously iodine deficient villages of Kiga and Randan, were divided into 3 subgroups: in subgroup I the mother had received iodized oil 1-4 years prior to conception and infant consumed iodized salt from the age 14 years onwards; in subgroup II mothers received iodized oil during pregnancy and the child received iodized salt from the age 2-4 years and in subgroup III the child received iodized oil injection from age 1-3 and iodized salt from 3-6 years of age onwards. Serum T4, T3, TSH and TJ uptake and urine iodide concentrations were measured. Bender-Guestalt and Raven tests were employed for psychomotor evaluation. A group of 40 age and sex matched schoolchildren from Tehran served as controls.
Mean age of subgroups I, II and III were 8.91.7, 9.41.4 and 1l.91.2 years, respectively. Serum T4, T3, TSH and urinary iodine concentrations were normal in all children. Urinary iodine and serum T4, T3 and TSH concentration did not differ between the 3 subgroups. Mean IQ was higher in subgroup I (1027), as compared to subgroup II (9310, p
It is concluded that children whose mothers received iodide supplementation before conception had normal IQs of significantly higher values than those whose mothers received iodine during pregnancy and the children who received iodine after birth.
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© 2004, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.
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