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We also consider the results of grey literature.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study selections<\/jats:title>\n                    <jats:p>Cohort, cross-sectional, and case-control studies were included.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Data extraction and synthesis<\/jats:title>\n                    <jats:p>The required data were extracted by the first author of the article and reviewed by the second author. The Pooled prevalence of outcomes of interest was applied using the meta-prop method with a pooled estimate after Freeman-Tukey Double Arcsine Transformation to stabilize the variances.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Outcomes and measured<\/jats:title>\n                    <jats:p>The different thyroid disorders were the main outcomes of this study. The diseases include non-thyroidal illness syndrome, thyrotoxicosis, hypothyroidism, isolated elevated free T4, and isolated low free T4.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Eight articles were included in our meta-analysis(Total participants: 1654). The pooled prevalence of events hypothyroidism, isolated elevated FT4, isolated low FT4, NTIS, and thyrotoxicosis were estimated (Pooled\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20093%, 95% CI:2\u20135%, I2: 78%), (Pooled\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20092%, 95% CI: 0\u20134%, I2: 66%), (Pooled\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20091%, 95% CI: 0\u20131%, I2: 0%), (Pooled\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u200926%, 95% CI: 10\u201342%, I2: 98%), and (Pooled\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u200910%, 95% CI: 4\u201316%, I2: 89%), respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Thyroid dysfunction is common in COVID-19 patients, with a high prevalence of non-thyroidal illness syndrome (NTIS) and thyrotoxicosis. Our meta-analysis found a 26% prevalence of NTIS and a 10% prevalence of thyrotoxicosis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Systematic review registration<\/jats:title>\n                    <jats:p>PROSPERO CRD42022312601.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12902-023-01534-9","type":"journal-article","created":{"date-parts":[[2024,1,2]],"date-time":"2024-01-02T05:02:58Z","timestamp":1704171778000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["The prevalence of thyroid disorders in COVID-19 patients: a systematic review and meta-analysis"],"prefix":"10.1186","volume":"24","author":[{"given":"Sadra","family":"Ashrafi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hossein","family":"Hatami","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Razieh","family":"Bidhendi-Yarandi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammad Hossein","family":"Panahi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,1,2]]},"reference":[{"issue":"4","key":"1534_CR1","doi-asserted-by":"publisher","first-page":"769","DOI":"10.3803\/EnM.2021.1109","volume":"36","author":"J Ahn","year":"2021","unstructured":"Ahn J, Lee MK, Lee JH, Sohn SY. 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