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Erschienen in:
06.05.2020 | original article
Incidence of thyroid disorders in the second decade of adequate iodine supply in Slovenia
Erschienen in: Wiener klinische Wochenschrift | Ausgabe 5-6/2021
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Background
The incidence of thyroid disorders importantly depends on iodine supply and may change over time. There are only a few data available regarding the change in the incidence of thyroid disorders following the increase in iodine supply. Therefore, the aim of this study was to establish the incidence of thyroid disorders in the second decade of adequate iodine supply in Slovenia.
Methods
The medical records of 17,828 adult patients who were examined at this department for the first time in the years 2011, 2012, 2013 and 2014 were reviewed. The incidence of diffuse and nodular goiter, thyroid autonomy, Graves’ disease, non-hypothyroid and hypothyroid Hashimoto’s thyroiditis in the stable catchment area of the University Medical Centre Ljubljana with 1,000,000 inhabitants was followed.
Results
A significantly lower incidence of thyroid autonomy was observed in the year 2014 as compared to 2011 (p = 0.006), a significantly higher incidence of Hashimoto’s thyroiditis in 2014 as compared to 2013 (p = 0.003), and a significantly higher incidence of non-hypothyroid Hashimoto’s thyroiditis in 2014 as compared to 2011 and 2013 (p = 0.005 and p = 0.022, respectively). The incidence of other thyroid diseases did not change significantly in the observed period.
Conclusion
In the second decade of adequate iodine supply in Slovenia, we established a similar or even a lower incidence of most thyroid diseases in the observed 4 years with the exception of Hashimoto’s thyroiditis.