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21.09.2022 | COVID-19 | Original Article

Impact of the COVID-19 pandemic on the incidence, seasonal distribution, and characteristics of subacute thyroiditis

verfasst von: Hayri Bostan, Muhammed Erkam Sencar, Murat Calapkulu, Serdar Kayihan, Sema Hepsen, Aykut Cimsir, Umran Gul, Ilknur Ozturk Unsal, Ozgur Ozcelik, Muhammed Kizilgul, Bekir Ucan, Erman Cakal

Erschienen in: Endocrine

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Abstract

Purpose

An increasing number of cases of subacute thyroiditis (SAT) related to the coronavirus disease 2019 (COVID-19) and its vaccines continue to be published. The aim of this study was to investigate any change in the incidence and characteristics of SAT by comparing the pre-pandemic and pandemic periods.

Methods

This retrospective, single-center study included 432 newly-diagnosed SAT patients between January 2018 and December 2021. The annual frequency of SAT was calculated as the number of newly-diagnosed SAT cases divided by the total number of outpatients that year.

Results

The frequencies of newly-diagnosed SAT were 0.136% in 2018, 0.127% in 2019, 0.157% in 2020, and 0.114% in 2021 (p = 0.19). While SAT patients were clustered in the autumn (35.1%) in 2018 and 2019, it was found that this cluster shifted to the winter (33.0%) in 2020 and 2021, in parallel with COVID-19 case peaks (p = 0.017). The patients were separated into two groups as pre-COVID-19 pandemic SAT (n = 272) and COVID-19 pandemic SAT (n = 160). The mean ages of the groups were similar. There were more male patients in the COVID-19 pandemic SAT group than in the pre-pandemic group (30.6% vs. 18.7%, p = 0.005). Frequencies of overt hyperthyroidism and median free-thyroxine levels were significantly higher in the COVID-19 pandemic SAT group (p = 0.029, p = 0.001). Treatment modalities, recurrence rates, and permanent hypothyroidism were similar in both groups.

Conclusion

With the COVID-19 pandemic, although there was a change in seasonal variation of SAT and an increase in the number of male patients, there was no change in the incidence and clinical course of SAT.
Literatur
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Metadaten
Titel
Impact of the COVID-19 pandemic on the incidence, seasonal distribution, and characteristics of subacute thyroiditis
verfasst von
Hayri Bostan
Muhammed Erkam Sencar
Murat Calapkulu
Serdar Kayihan
Sema Hepsen
Aykut Cimsir
Umran Gul
Ilknur Ozturk Unsal
Ozgur Ozcelik
Muhammed Kizilgul
Bekir Ucan
Erman Cakal
Publikationsdatum
21.09.2022
Verlag
Springer US
Schlagwort
COVID-19
Erschienen in
Endocrine
Print ISSN: 1355-008X
Elektronische ISSN: 1559-0100
DOI
https://doi.org/10.1007/s12020-022-03197-3

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