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  • Ten-year follow-up of thyroid epidemiology in Slovenia after increase in salt iodization
    Zaletel, Katja ...
    Aim. To assess iodine supply and follow thyroid epidemiology for ten years after an iodine increase from 10 to 25 mg of potassium iodide per kilogram of salt in 1999. Methods. In 2002 and 2003, we ... determined the thyroid size by palpation and ultrasound and measured urinary iodine concentration (UIC) in 676 schoolchildren from 34 schools throughout Slovenia. From 1999 to 2009, wefollowed the incidence of diffuse and nodular goiter, thyroid autonomy, Graves' disease, and Hashimoto's thyroiditis among adults in the stable catchment area of the University Medical Centre Ljubljana with 1000000 inhabitants. Results. In children, only 1% had a goiter grade 2 (visible and palpable thyroid gland), median thyroid volume was 5.8 mL, and median UIC was 148 mug/L. In adults, the incidence of diffuse goiter and thyroid autonomy decreased significantly (2009 vs 1999, rate ratio šRRđ, 0.16; 95% confidence interval šCIđ, 0.12-0.21 and RR, 0.73; 95% CI, 0.62-0.86, respectively), with a lower incidence in younger participants in 2009 (P<0.001). The incidence ofmultinodular goiter and solitary nodule increased (2009 vs 1999, RR, 1.55; 95% CI, 1.35-1.79 and RR, 1.72; 95% CI, 1.49-1.99, respectively). No long-termchanges were observed for Graves' disease (2009 vs 1999, RR, 0.95; 95% CI, 0.81-1.13), while the incidence of Hashimoto's thyroiditis increased strongly (2009 vs 1999, RR, 1.86; 95% CI, 1.64-2.12). Conclusions. The change from mildly deficient to sufficient iodine supply was associated with a marked change in the incidence of thyroid epidemiology - a significant decline in the incidence of diffuse goiter and thyroid autonomy and a marked increase in the incidence of Hashimoto's thyroiditis.
    Vir: Croatian medical journal. - ISSN 0353-9504 (Vol. 52, issue 5, 2011, str. 615-621)
    Vrsta gradiva - članek, sestavni del
    Leto - 2011
    Jezik - angleški
    COBISS.SI-ID - 28983001
    DOI

vir: Croatian medical journal. - ISSN 0353-9504 (Vol. 52, issue 5, 2011, str. 615-621)
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