Evaluation of Urinary Iodine by Sandell-kolthoff Reaction Method in Urbanand Rural Children Referring to the Shiraz Shahid Motahari Clinic and Village ofMarvdasht City in 2016 and 2017

Iodine deficiency affects the population of all age groups, but neonates, infants,pregnant women, and school children constitute the most vulnerable groups. Disorders caused byiodine deficiency are among the major health-nutritional problems in Iran. Because of the importance ofthis matter, the present study was done to evaluate the status of urinary iodine in 6-16 years old childrenin urban and rural areas and to compare measurement indices of urinary iodine.

 In this cross-sectional descriptive study, we included 230 6-16 years old children,including 128 urban and 102 rural children. In all samples, the creatinine amount was measured basedon the Jaffe reaction, and iodine was measured by the acid digestion method. Since iodine concentrationwas not normally distributed, the median value of urinary iodine was reported. Also, the urinary iodine/creatinine (UI/Cr) ratio index was calculated in all samples.

 The median value of urinary iodine in all examined children was 14.30 μg/dL and in children ofurban and rural areas were 15.6 and 12.9 μg/dL, respectively. Because these measurements were morethan 10 μg/dL, the urinary iodine was sufficient in children of both regions. Based on the median UI/Crratio, the iodine excretion was 178.92 μg/g in all children (more than 50 μg/g showing iodine sufficiency).

 Based on median urinary iodine and median UI/Cr ratio, iodine intake in children was normal.Also, according to the present study, there is a fair agreement between both mentioned indices