پايش شيوع گواتر و ميزان يد ادرار در دانش آموزان 8 تا 10 ساله استان خوزستان در سال 1375

GOITER MONITORING AND URINARY IODINE CONCENTRATION IN SCHOOLCHILDREN AGED 8 TO 10 YEAR OF KHUZESTAN PROVINCE IN 1996

Iodine deficiency disorders (IDD) is a worldwide health problem. Many parts of the Islamic Republic of Iran had been known as areas of endemic goiter, IDD was accepted as a priority health problem in the country, and a National IDD council was formed in 1989. One of the main strategies of National council for IDD control was to provide at least I50 tg of iodine per day to the entire population through making iodized salt available. This study was performed to evaluate the national IDD council program in 1996. in rural and urban areas of Khuzestan province. 1 300 schoolchildren, aged 8 to 10 year & including 50% girls and 50% boy & were selected through random sampling. Grading of goiter was performed according to WHOʹs classification. Serum T 3, T4 and TSH were measured by RIA and uninary iodine by digestion method. The mean of serum T4, T3 and TSH were: 9.7 ± 1.7 µg/dl, 157+25 ng/dl and 3.0=2.0 µlu/ml respectively. There were no differences between males and females and schoolchildren of rural and urban areas. 0.15% had serum T4 more than 12.5 µg/dl and 12 person had TSH more than 5µlu/m1. The mean of urinary iodine was 29 .µg/dl in entire population, 89% had urinary iodine more than10µg/dl. Only 1.8% had urinary iodine less than 5µg/dl. Total prevalence of goiter was 58% (59% in girls and 57% in boys). Based on the available data, seven years after generalized use of iodized salt and 2 years after more than 50% of population used iodized salt, uninary iodine of school children of Khuzestan province showed sufficient iodine intake. However, goiter is still endemic in Khuzestan province.