Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19
Aim: To study the prevalence of thyroid dysfunction and its association with disease severity in hospitalized patients of coronavirus disease-19 (COVID-19). Methods: In this retrospective cohort study, thyroid function tests (TFT) of 236 hospitalized patients of COVID-19 along with demographic, co...
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Bioscientifica
2021
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oai:doaj.org-article:ae032ea781e847eba709da19da5643e72021-11-16T06:37:17ZLow FT3 is an independent marker of disease severity in patients hospitalized for COVID-19https://doi.org/10.1530/EC-21-03622049-3614https://doaj.org/article/ae032ea781e847eba709da19da5643e72021-11-01T00:00:00Zhttps://ec.bioscientifica.com/view/journals/ec/10/11/EC-21-0362.xmlhttps://doaj.org/toc/2049-3614Aim: To study the prevalence of thyroid dysfunction and its association with disease severity in hospitalized patients of coronavirus disease-19 (COVID-19). Methods: In this retrospective cohort study, thyroid function tests (TFT) of 236 hospitalized patients of COVID-19 along with demographic, comorbid, clinical, biochemical and disease severity records were analysed. Patients were divided into previous euthyroid or hypothyroid status to observe the effect o f prior hypothyroidism on the severity of COVID-19. Results: TFT abnormalities were common. Low free T3 (FT3), high thyroid-stimulating hormone (TSH) and low TSH were seen in 56 (23.7%), 15 (6.4%) and 9 (3.8%) patients, respectively. The median levels of TSH (2.06 vs 1.26 mIU/mL, P = 0.001) and FT3 (2.94 vs 2.47 pg/mL, P < 0.001) were significantly lower in severe disease. Previous h ypothyroid status (n = 43) was associated with older age, higher frequency of comorbidities, higher FT4 and lower FT3. TFT did not correlate with markers of inflamm ation (except lactate dehydrogenase); however, FT3 and TSH negatively correlated with outcome severity score and duration of hospital stay. Cox regression analysis showed that low FT3 was associated with severe COVID-19 (P = 0.032, HR 0.302; CI 0.101–0.904), irrespective of prior hypothyroidism. Conclusions: Functional thyroid abnormalities (low FT3 and low TSH) are fre quently seen in hospitalized patients of COVID-19. Although these abnormalities did not correlate with markers of inflammation, this study shows that low FT3 at a dmission independently predicts the severity of COVID-19. Aditya DuttaGanesh JevalikarRutuja SharmaKhalid J FarooquiShama MahendruArun DewanSandeep BhudirajaAmbrish MithalBioscientificaarticlecovid-19hypothyroidismlow ft3non-thyroidal illnessseverityDiseases of the endocrine glands. Clinical endocrinologyRC648-665ENEndocrine Connections, Vol 10, Iss 11, Pp 1455-1462 (2021) |
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covid-19 hypothyroidism low ft3 non-thyroidal illness severity Diseases of the endocrine glands. Clinical endocrinology RC648-665 |
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covid-19 hypothyroidism low ft3 non-thyroidal illness severity Diseases of the endocrine glands. Clinical endocrinology RC648-665 Aditya Dutta Ganesh Jevalikar Rutuja Sharma Khalid J Farooqui Shama Mahendru Arun Dewan Sandeep Bhudiraja Ambrish Mithal Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19 |
description |
Aim: To study the prevalence of thyroid dysfunction and its association with disease severity in hospitalized patients of coronavirus disease-19 (COVID-19).
Methods: In this retrospective cohort study, thyroid function tests (TFT) of 236 hospitalized patients of COVID-19 along with demographic, comorbid, clinical, biochemical and disease severity records were analysed. Patients were divided into previous euthyroid or hypothyroid status to observe the effect o f prior hypothyroidism on the severity of COVID-19.
Results: TFT abnormalities were common. Low free T3 (FT3), high thyroid-stimulating hormone (TSH) and low TSH were seen in 56 (23.7%), 15 (6.4%) and 9 (3.8%) patients, respectively. The median levels of TSH (2.06 vs 1.26 mIU/mL, P = 0.001) and FT3 (2.94 vs 2.47 pg/mL, P < 0.001) were significantly lower in severe disease. Previous h ypothyroid status (n = 43) was associated with older age, higher frequency of comorbidities, higher FT4 and lower FT3. TFT did not correlate with markers of inflamm ation (except lactate dehydrogenase); however, FT3 and TSH negatively correlated with outcome severity score and duration of hospital stay. Cox regression analysis showed that low FT3 was associated with severe COVID-19 (P = 0.032, HR 0.302; CI 0.101–0.904), irrespective of prior hypothyroidism.
Conclusions: Functional thyroid abnormalities (low FT3 and low TSH) are fre quently seen in hospitalized patients of COVID-19. Although these abnormalities did not correlate with markers of inflammation, this study shows that low FT3 at a dmission independently predicts the severity of COVID-19.
|
format |
article |
author |
Aditya Dutta Ganesh Jevalikar Rutuja Sharma Khalid J Farooqui Shama Mahendru Arun Dewan Sandeep Bhudiraja Ambrish Mithal |
author_facet |
Aditya Dutta Ganesh Jevalikar Rutuja Sharma Khalid J Farooqui Shama Mahendru Arun Dewan Sandeep Bhudiraja Ambrish Mithal |
author_sort |
Aditya Dutta |
title |
Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19 |
title_short |
Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19 |
title_full |
Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19 |
title_fullStr |
Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19 |
title_full_unstemmed |
Low FT3 is an independent marker of disease severity in patients hospitalized for COVID-19 |
title_sort |
low ft3 is an independent marker of disease severity in patients hospitalized for covid-19 |
publisher |
Bioscientifica |
publishDate |
2021 |
url |
https://doi.org/10.1530/EC-21-0362 https://doaj.org/article/ae032ea781e847eba709da19da5643e7 |
work_keys_str_mv |
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