ESPE Abstracts (2014) 82 P-D-2-1-594

The Evolution of Iodine Status in Schoolchildren Living in a Formerly Iodine-deficient Region of Mures County, Romania

Zsuzsanna Szántóa, Zsuzsanna Rétia, Jolán Ballókb, Attila Csiszérc, Elod Nagya, Ildikó Kund & Imre Zoltán Kuna

aUniversity of Medicine and Pharmacy, Targu Mures, Romania; bGeneral Practitioner Unit, Glajarie, Romania; cRegional Center of Public Health, Targu Mures, Romania; dDentalin, Budapest, Hungary

Background: Some hilly-mountainous regions of Mures County, located in the geographical center of Romania, were known as moderately mild iodine-deficient areas before the universal use of iodized alimentary salt was compulsorily implemented in practice in 2003. A partial evaluation was performed in 2006, but the sustainability of this prophylactic program was not evaluated afterward.

Objective and hypotheses: To assess the current iodine status of schoolchildren living in three rural localities of formerly iodine-deficient endemic area Gurghiu valley, and to evaluate the changes of iodine status in the last 7 years.

Material and methods: Schoolchildren aged between 6 and 14 years were investigated during October-November 2013, physical examination and thyroid ultrasound being performed in 95, urinary iodine excretion (UIE) in 120 and hormone investigations (TSH and free-T4) in 84 cases.

Results: According to the age- and gender-related thyroid volume measured ultrasonographically, the frequency of goiter was 6.2% in 2013, which is a significant reduction compared to the 20% seen in 2006 (P=0.0038; RR=1.49; 95% CI=1.21–1.83). The mean UIE was 337±190 μg/l in 2013 (35% of the children having elevated IUE), which shows a normal, even an almost increased iodine-supply in this region. This is a significant elevation compared to that of 73.7±52.5 μg/l obtained in 2006. In 2013 seven children (7.1%) had subclinical hypothyroidism, which is a significant reduction compared to the frequency of 17.7% registered in 2006 (P=0.038, RR=1.38; 95% CI=1.10–1.74).

Conclusion: Regions of Mures County known as iodine-deficient in 2003–2006 became now iodine-sufficient areas, even observing in 35% of the children high iodine supply.

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