Abstract

The aim of this study was to assess the prevalence of thyroid hyperplasia and iodine deficiency in children in the city of Novosibirsk. Children aged 7 to 10 and 13 to 16 years of both sexes were examined. The degree of thyroid hyperplasia was assessed by palpation and ultrasonic method, thyroid function was assessed clinically, and the level of urinary excretion of inorganic iodine was measured. Ultrasonography revealed enlargement of the thyroid in 20% of younger schoolchildren and in 47% of pubertal children. Slight or moderate iodine deficiency was revealed in half of all examinees; the condition was 1.5 times more frequent in younger children than in senior ones. Measurements of daily urinary excretion of iodine in children and adults indicate that iodine consumption is insufficient. The authors consider that high prevalence of thyroid hyperplasia in the children of Novosibirsk is a result of neglect of endemic goiter control in Russia and emphasize that the state program for salt iodination is to be resumed.

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