Study of reference intervals for free triiodothyronine, free thyroxine, and thyroid-stimulating hormone in an elderly Chinese Han population

The clinical manifestations of thyroid diseases in elderly patients are often atypical. This study aimed to establish reference intervals for thyroid function in the elderly in order to help diagnose thyroid diseases in this population. A total of 5345 healthy individuals were examined and divided i...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:PloS one 2020-09, Vol.15 (9), p.e0239579-e0239579
Hauptverfasser: Xiong, Jingting, Liu, Shiguo, Hu, Kai, Xiong, Yinxiang, Wang, Pengyun, Xiong, Liang
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page e0239579
container_issue 9
container_start_page e0239579
container_title PloS one
container_volume 15
creator Xiong, Jingting
Liu, Shiguo
Hu, Kai
Xiong, Yinxiang
Wang, Pengyun
Xiong, Liang
description The clinical manifestations of thyroid diseases in elderly patients are often atypical. This study aimed to establish reference intervals for thyroid function in the elderly in order to help diagnose thyroid diseases in this population. A total of 5345 healthy individuals were examined and divided into three groups according to their age: 4297 individuals aged < 65 years (19-64), 719 individuals aged between 65 and 79 years, and 329 individuals aged between 80 and 100 years. Levels of free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH), thyroid peroxidase antibody, and thyroglobulin antibody were measured in these subjects by using a fully automated analyzer. The following free triiodothyronine, free thyroxine, and thyroid-stimulating hormone reference intervals were obtained from each age group: For individuals aged < 65 years (19-64 years), FT3, FT4, and TSH were 3.40-6.44, 10.26-19.25 pmol/L and 0.50-4.81 [mu]IU/mL, respectively. For individuals aged between 65 and 79 years, FT3, FT4 and TSH ranged between 3.01-5.91, 10.04-19.76 pmol/L, and 0.54-5.51 [mu]IU/mL, respectively. For individuals aged between 80 and 100 years, FT3, FT4, and TSH varied between 2.82-5.57, 9.79-21.22 pmol/L, 0.31-6.28 [mu]IU/mL respectively. FT3 concentration was lower and the concentrations of FT4 and TSH were higher in individuals aged [greater than or equal to] 65 years than in those aged
doi_str_mv 10.1371/journal.pone.0239579
format Article
fullrecord <record><control><sourceid>gale_plos_</sourceid><recordid>TN_cdi_plos_journals_2445951651</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A636415930</galeid><doaj_id>oai_doaj_org_article_fab7dfb0b0144160a4356cb4108b3b60</doaj_id><sourcerecordid>A636415930</sourcerecordid><originalsourceid>FETCH-LOGICAL-c599t-3087d2c1e3d7a54c81d053fe0ab1ea637e8609b3d0868d7ce1a0b6e16d89903f3</originalsourceid><addsrcrecordid>eNqNk9GK1DAUhoso7rr6BoIXgig4Y9K0aXOzsAzqDiwsuOptSJvTaYY2GZN02XkYoc_SJzOdqctW9sIW2vKf7_znnDSJotcYLTHJ8Ket6awWzXJnNCxRTFiasSfRKWYkXtAYkacPvk-iF85tEUpJTunz6ITELEMZYafR7xvfyf3Qm2roLVRgQZcw9Ep7sLeicUNfGRseFoLqrVJGGl_vrdFKw8f7wKjcHRWh5SQouXBetV0jvNKboa-NbUOzo_uIDT00EmwTqq_qkOtC5HKUd2Z3yDH6ZfSsCk3Aq-l9Fv348vn76nJxdf11vbq4WpQpY35BUJ7JuMRAZCbSpMyxDKNWgESBQVCSQU4RK4hEOc1lVgIWqKCAqcwZQ6QiZ9Gbo--uMY5PK-t4nCQpSzFNcSDWR0IaseU7q1ph99wIxQ-CsRsurFdlA7wSRSarAhUIJwmmSCQkpWWRYJQXpKAoeJ1P1bqiBVmC9lY0M9N5RKuab8wtz1KcIBoHg_eTgTW_OnCet8qV0DRCg-kOfdNwxTkN6Nt_0Menm6iNCAMoXZlQtxxN-QUlNMEpI2Pfy0eocEtoVRn-bKWCPkv4MEsIjIc7vxGdc3x98-3_2eufc_bdA7YG0fjamaYbt4ybg8kRLK1xLuzv-0XGiI-n6O9q8PEU8ekUkT8TWR_N</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2445951651</pqid></control><display><type>article</type><title>Study of reference intervals for free triiodothyronine, free thyroxine, and thyroid-stimulating hormone in an elderly Chinese Han population</title><source>DOAJ Directory of Open Access Journals</source><source>Public Library of Science (PLoS) Journals Open Access</source><source>EZB-FREE-00999 freely available EZB journals</source><source>PubMed Central</source><source>Free Full-Text Journals in Chemistry</source><creator>Xiong, Jingting ; Liu, Shiguo ; Hu, Kai ; Xiong, Yinxiang ; Wang, Pengyun ; Xiong, Liang</creator><contributor>Naitza, Silvia</contributor><creatorcontrib>Xiong, Jingting ; Liu, Shiguo ; Hu, Kai ; Xiong, Yinxiang ; Wang, Pengyun ; Xiong, Liang ; Naitza, Silvia</creatorcontrib><description>The clinical manifestations of thyroid diseases in elderly patients are often atypical. This study aimed to establish reference intervals for thyroid function in the elderly in order to help diagnose thyroid diseases in this population. A total of 5345 healthy individuals were examined and divided into three groups according to their age: 4297 individuals aged &lt; 65 years (19-64), 719 individuals aged between 65 and 79 years, and 329 individuals aged between 80 and 100 years. Levels of free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH), thyroid peroxidase antibody, and thyroglobulin antibody were measured in these subjects by using a fully automated analyzer. The following free triiodothyronine, free thyroxine, and thyroid-stimulating hormone reference intervals were obtained from each age group: For individuals aged &lt; 65 years (19-64 years), FT3, FT4, and TSH were 3.40-6.44, 10.26-19.25 pmol/L and 0.50-4.81 [mu]IU/mL, respectively. For individuals aged between 65 and 79 years, FT3, FT4 and TSH ranged between 3.01-5.91, 10.04-19.76 pmol/L, and 0.54-5.51 [mu]IU/mL, respectively. For individuals aged between 80 and 100 years, FT3, FT4, and TSH varied between 2.82-5.57, 9.79-21.22 pmol/L, 0.31-6.28 [mu]IU/mL respectively. FT3 concentration was lower and the concentrations of FT4 and TSH were higher in individuals aged [greater than or equal to] 65 years than in those aged &lt;65 years (P&lt;0.0001; P = 0.0039; P&lt;0.0001, respectively). In conclusion, establishment of a reference interval would allow clinicians to diagnose diseases more accurately and easily.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0239579</identifier><identifier>PMID: 32970739</identifier><language>eng</language><publisher>San Francisco: Public Library of Science</publisher><subject>Age groups ; Aging ; Antibodies ; Biology and Life Sciences ; Elderly patients ; Han (Chinese people) ; Hormones ; Hospitals ; Intervals ; Iodide peroxidase ; Laboratories ; Medical diagnosis ; Medical examination ; Medical research ; Medical schools ; Medicine ; Medicine and Health Sciences ; Methods ; Normal distribution ; Older people ; People and Places ; Peroxidase ; Physical Sciences ; Population ; Research methodology ; Thyroglobulin ; Thyroid ; Thyroid diseases ; Thyroid function tests ; Thyroid gland ; Thyroid hormones ; Thyroid-stimulating hormone ; Thyroxine ; Triiodothyronine</subject><ispartof>PloS one, 2020-09, Vol.15 (9), p.e0239579-e0239579</ispartof><rights>COPYRIGHT 2020 Public Library of Science</rights><rights>2020 Xiong et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2020 Xiong et al 2020 Xiong et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c599t-3087d2c1e3d7a54c81d053fe0ab1ea637e8609b3d0868d7ce1a0b6e16d89903f3</citedby><cites>FETCH-LOGICAL-c599t-3087d2c1e3d7a54c81d053fe0ab1ea637e8609b3d0868d7ce1a0b6e16d89903f3</cites><orcidid>0000-0001-7121-4389</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7514062/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7514062/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79600,79601</link.rule.ids></links><search><contributor>Naitza, Silvia</contributor><creatorcontrib>Xiong, Jingting</creatorcontrib><creatorcontrib>Liu, Shiguo</creatorcontrib><creatorcontrib>Hu, Kai</creatorcontrib><creatorcontrib>Xiong, Yinxiang</creatorcontrib><creatorcontrib>Wang, Pengyun</creatorcontrib><creatorcontrib>Xiong, Liang</creatorcontrib><title>Study of reference intervals for free triiodothyronine, free thyroxine, and thyroid-stimulating hormone in an elderly Chinese Han population</title><title>PloS one</title><description>The clinical manifestations of thyroid diseases in elderly patients are often atypical. This study aimed to establish reference intervals for thyroid function in the elderly in order to help diagnose thyroid diseases in this population. A total of 5345 healthy individuals were examined and divided into three groups according to their age: 4297 individuals aged &lt; 65 years (19-64), 719 individuals aged between 65 and 79 years, and 329 individuals aged between 80 and 100 years. Levels of free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH), thyroid peroxidase antibody, and thyroglobulin antibody were measured in these subjects by using a fully automated analyzer. The following free triiodothyronine, free thyroxine, and thyroid-stimulating hormone reference intervals were obtained from each age group: For individuals aged &lt; 65 years (19-64 years), FT3, FT4, and TSH were 3.40-6.44, 10.26-19.25 pmol/L and 0.50-4.81 [mu]IU/mL, respectively. For individuals aged between 65 and 79 years, FT3, FT4 and TSH ranged between 3.01-5.91, 10.04-19.76 pmol/L, and 0.54-5.51 [mu]IU/mL, respectively. For individuals aged between 80 and 100 years, FT3, FT4, and TSH varied between 2.82-5.57, 9.79-21.22 pmol/L, 0.31-6.28 [mu]IU/mL respectively. FT3 concentration was lower and the concentrations of FT4 and TSH were higher in individuals aged [greater than or equal to] 65 years than in those aged &lt;65 years (P&lt;0.0001; P = 0.0039; P&lt;0.0001, respectively). In conclusion, establishment of a reference interval would allow clinicians to diagnose diseases more accurately and easily.</description><subject>Age groups</subject><subject>Aging</subject><subject>Antibodies</subject><subject>Biology and Life Sciences</subject><subject>Elderly patients</subject><subject>Han (Chinese people)</subject><subject>Hormones</subject><subject>Hospitals</subject><subject>Intervals</subject><subject>Iodide peroxidase</subject><subject>Laboratories</subject><subject>Medical diagnosis</subject><subject>Medical examination</subject><subject>Medical research</subject><subject>Medical schools</subject><subject>Medicine</subject><subject>Medicine and Health Sciences</subject><subject>Methods</subject><subject>Normal distribution</subject><subject>Older people</subject><subject>People and Places</subject><subject>Peroxidase</subject><subject>Physical Sciences</subject><subject>Population</subject><subject>Research methodology</subject><subject>Thyroglobulin</subject><subject>Thyroid</subject><subject>Thyroid diseases</subject><subject>Thyroid function tests</subject><subject>Thyroid gland</subject><subject>Thyroid hormones</subject><subject>Thyroid-stimulating hormone</subject><subject>Thyroxine</subject><subject>Triiodothyronine</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>DOA</sourceid><recordid>eNqNk9GK1DAUhoso7rr6BoIXgig4Y9K0aXOzsAzqDiwsuOptSJvTaYY2GZN02XkYoc_SJzOdqctW9sIW2vKf7_znnDSJotcYLTHJ8Ket6awWzXJnNCxRTFiasSfRKWYkXtAYkacPvk-iF85tEUpJTunz6ITELEMZYafR7xvfyf3Qm2roLVRgQZcw9Ep7sLeicUNfGRseFoLqrVJGGl_vrdFKw8f7wKjcHRWh5SQouXBetV0jvNKboa-NbUOzo_uIDT00EmwTqq_qkOtC5HKUd2Z3yDH6ZfSsCk3Aq-l9Fv348vn76nJxdf11vbq4WpQpY35BUJ7JuMRAZCbSpMyxDKNWgESBQVCSQU4RK4hEOc1lVgIWqKCAqcwZQ6QiZ9Gbo--uMY5PK-t4nCQpSzFNcSDWR0IaseU7q1ph99wIxQ-CsRsurFdlA7wSRSarAhUIJwmmSCQkpWWRYJQXpKAoeJ1P1bqiBVmC9lY0M9N5RKuab8wtz1KcIBoHg_eTgTW_OnCet8qV0DRCg-kOfdNwxTkN6Nt_0Menm6iNCAMoXZlQtxxN-QUlNMEpI2Pfy0eocEtoVRn-bKWCPkv4MEsIjIc7vxGdc3x98-3_2eufc_bdA7YG0fjamaYbt4ybg8kRLK1xLuzv-0XGiI-n6O9q8PEU8ekUkT8TWR_N</recordid><startdate>20200924</startdate><enddate>20200924</enddate><creator>Xiong, Jingting</creator><creator>Liu, Shiguo</creator><creator>Hu, Kai</creator><creator>Xiong, Yinxiang</creator><creator>Wang, Pengyun</creator><creator>Xiong, Liang</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0001-7121-4389</orcidid></search><sort><creationdate>20200924</creationdate><title>Study of reference intervals for free triiodothyronine, free thyroxine, and thyroid-stimulating hormone in an elderly Chinese Han population</title><author>Xiong, Jingting ; Liu, Shiguo ; Hu, Kai ; Xiong, Yinxiang ; Wang, Pengyun ; Xiong, Liang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c599t-3087d2c1e3d7a54c81d053fe0ab1ea637e8609b3d0868d7ce1a0b6e16d89903f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Age groups</topic><topic>Aging</topic><topic>Antibodies</topic><topic>Biology and Life Sciences</topic><topic>Elderly patients</topic><topic>Han (Chinese people)</topic><topic>Hormones</topic><topic>Hospitals</topic><topic>Intervals</topic><topic>Iodide peroxidase</topic><topic>Laboratories</topic><topic>Medical diagnosis</topic><topic>Medical examination</topic><topic>Medical research</topic><topic>Medical schools</topic><topic>Medicine</topic><topic>Medicine and Health Sciences</topic><topic>Methods</topic><topic>Normal distribution</topic><topic>Older people</topic><topic>People and Places</topic><topic>Peroxidase</topic><topic>Physical Sciences</topic><topic>Population</topic><topic>Research methodology</topic><topic>Thyroglobulin</topic><topic>Thyroid</topic><topic>Thyroid diseases</topic><topic>Thyroid function tests</topic><topic>Thyroid gland</topic><topic>Thyroid hormones</topic><topic>Thyroid-stimulating hormone</topic><topic>Thyroxine</topic><topic>Triiodothyronine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xiong, Jingting</creatorcontrib><creatorcontrib>Liu, Shiguo</creatorcontrib><creatorcontrib>Hu, Kai</creatorcontrib><creatorcontrib>Xiong, Yinxiang</creatorcontrib><creatorcontrib>Wang, Pengyun</creatorcontrib><creatorcontrib>Xiong, Liang</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Opposing Viewpoints</collection><collection>Gale In Context: Science</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Immunology Abstracts</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Agricultural Science Collection</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies &amp; Aerospace Collection</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>Advanced Technologies &amp; Aerospace Database</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xiong, Jingting</au><au>Liu, Shiguo</au><au>Hu, Kai</au><au>Xiong, Yinxiang</au><au>Wang, Pengyun</au><au>Xiong, Liang</au><au>Naitza, Silvia</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study of reference intervals for free triiodothyronine, free thyroxine, and thyroid-stimulating hormone in an elderly Chinese Han population</atitle><jtitle>PloS one</jtitle><date>2020-09-24</date><risdate>2020</risdate><volume>15</volume><issue>9</issue><spage>e0239579</spage><epage>e0239579</epage><pages>e0239579-e0239579</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>The clinical manifestations of thyroid diseases in elderly patients are often atypical. This study aimed to establish reference intervals for thyroid function in the elderly in order to help diagnose thyroid diseases in this population. A total of 5345 healthy individuals were examined and divided into three groups according to their age: 4297 individuals aged &lt; 65 years (19-64), 719 individuals aged between 65 and 79 years, and 329 individuals aged between 80 and 100 years. Levels of free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH), thyroid peroxidase antibody, and thyroglobulin antibody were measured in these subjects by using a fully automated analyzer. The following free triiodothyronine, free thyroxine, and thyroid-stimulating hormone reference intervals were obtained from each age group: For individuals aged &lt; 65 years (19-64 years), FT3, FT4, and TSH were 3.40-6.44, 10.26-19.25 pmol/L and 0.50-4.81 [mu]IU/mL, respectively. For individuals aged between 65 and 79 years, FT3, FT4 and TSH ranged between 3.01-5.91, 10.04-19.76 pmol/L, and 0.54-5.51 [mu]IU/mL, respectively. For individuals aged between 80 and 100 years, FT3, FT4, and TSH varied between 2.82-5.57, 9.79-21.22 pmol/L, 0.31-6.28 [mu]IU/mL respectively. FT3 concentration was lower and the concentrations of FT4 and TSH were higher in individuals aged [greater than or equal to] 65 years than in those aged &lt;65 years (P&lt;0.0001; P = 0.0039; P&lt;0.0001, respectively). In conclusion, establishment of a reference interval would allow clinicians to diagnose diseases more accurately and easily.</abstract><cop>San Francisco</cop><pub>Public Library of Science</pub><pmid>32970739</pmid><doi>10.1371/journal.pone.0239579</doi><tpages>e0239579</tpages><orcidid>https://orcid.org/0000-0001-7121-4389</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1932-6203
ispartof PloS one, 2020-09, Vol.15 (9), p.e0239579-e0239579
issn 1932-6203
1932-6203
language eng
recordid cdi_plos_journals_2445951651
source DOAJ Directory of Open Access Journals; Public Library of Science (PLoS) Journals Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry
subjects Age groups
Aging
Antibodies
Biology and Life Sciences
Elderly patients
Han (Chinese people)
Hormones
Hospitals
Intervals
Iodide peroxidase
Laboratories
Medical diagnosis
Medical examination
Medical research
Medical schools
Medicine
Medicine and Health Sciences
Methods
Normal distribution
Older people
People and Places
Peroxidase
Physical Sciences
Population
Research methodology
Thyroglobulin
Thyroid
Thyroid diseases
Thyroid function tests
Thyroid gland
Thyroid hormones
Thyroid-stimulating hormone
Thyroxine
Triiodothyronine
title Study of reference intervals for free triiodothyronine, free thyroxine, and thyroid-stimulating hormone in an elderly Chinese Han population
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T23%3A57%3A55IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Study%C2%A0of%C2%A0reference%C2%A0intervals%C2%A0for%C2%A0free%C2%A0triiodothyronine,%C2%A0free%C2%A0thyroxine,%C2%A0and%C2%A0thyroid-stimulating%C2%A0hormone%C2%A0in%C2%A0an%C2%A0elderly%C2%A0Chinese%C2%A0Han%C2%A0population&rft.jtitle=PloS%20one&rft.au=Xiong,%20Jingting&rft.date=2020-09-24&rft.volume=15&rft.issue=9&rft.spage=e0239579&rft.epage=e0239579&rft.pages=e0239579-e0239579&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0239579&rft_dat=%3Cgale_plos_%3EA636415930%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2445951651&rft_id=info:pmid/32970739&rft_galeid=A636415930&rft_doaj_id=oai_doaj_org_article_fab7dfb0b0144160a4356cb4108b3b60&rfr_iscdi=true