{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,6]],"date-time":"2026-06-06T23:18:08Z","timestamp":1780787888880,"version":"3.54.1"},"reference-count":31,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2012,8,1]],"date-time":"2012-08-01T00:00:00Z","timestamp":1343779200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Primary Health Care"],"published-print":{"date-parts":[[2013,4]]},"abstract":"<jats:sec id=\"S1463423612000230_abs1\" sec-type=\"general\">\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Subclinical hypothyroidism (SCHo) is a\n                                                  common biochemical diagnosis in older age.\n                                                  Evidence of impact is inconclusive and guidelines\n                                                  are inconsistent. With increasing numbers of\n                                                  thyroid function tests (TFTs) performed, GPs\n                                                  frequently have to make management decisions\n                                                  regarding this diagnosis. However, little is known\n                                                  about how SCHo is currently being managed in\n                                                  primary care.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1463423612000230_abs2\" sec-type=\"general\">\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>To explore management of SCHo in primary\n                                                  care and GP reported rationale for treatment of\n                                                  SCHo in older individuals.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1463423612000230_abs3\" sec-type=\"general\">\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Descriptive study using retrospective case\n                                                  note review and GP survey.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1463423612000230_abs4\" sec-type=\"general\">\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>Nineteen General Practices, Central\n                                                  England, UK.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1463423612000230_abs5\" sec-type=\"methods\">\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Follow-up of a large cohort with\n                                                  subsequent detailed review of individuals for whom\n                                                  therapy had been initiated following diagnosis of\n                                                  SCHo. Data on practice policies, and rationale\n                                                  behind treatment were collected via GP\n                                                  questionnaire.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1463423612000230_abs6\" sec-type=\"results\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Forty-two individuals were treated\n                                                  following identification of SCHo. Factors regarded\n                                                  as supporting instigation of therapy recorded by\n                                                  practitioners included symptoms, a positive\n                                                  antithyroid antibody test and history of\n                                                  radioiodine therapy. In all, 55% were registered\n                                                  at 3\/19 practices suggesting significant between\n                                                  practice variation. Reasons for testing included\n                                                  chronic disease check-up\n                                                  (\n                      <jats:italic>n<\/jats:italic>\n                      = 14), presenting\n                                                  \u2018thyroid symptoms\u2019 (\n                      <jats:italic>n<\/jats:italic>\n                      =\n                                                  5) and presenting other symptoms\n                                                  (\n                      <jats:italic>n<\/jats:italic>\n                      = 9). Reasons for\n                                                  therapy initiation were only recorded in 26 cases\n                                                  and included presence of symptoms, persistently\n                                                  high or increasing serum thyroid stimulating\n                                                  hormone concentration and patient request. Only\n                                                  2\/15 GPs reported having practice guidelines on\n                                                  management.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1463423612000230_abs7\" sec-type=\"conclusion\">\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Results suggest that GPs are uncertain how\n                                                  to interpret symptoms and TFT results in older\n                                                  individuals. There is considerable variation in\n                                                  management of SCHo between GPs with some GPs\n                                                  treating patients outside of all guideline\n                                                  recommendations.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1017\/s1463423612000230","type":"journal-article","created":{"date-parts":[[2012,11,22]],"date-time":"2012-11-22T11:24:15Z","timestamp":1353583455000},"page":"175-184","source":"Crossref","is-referenced-by-count":13,"title":["Why are GPs treating subclinical\n                                                  hypothyroidism? Case note review and GP\n                                                  survey"],"prefix":"10.1017","volume":"14","author":[{"given":"Jack","family":"Allport","sequence":"first","affiliation":[{"name":"University of Birmingham"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deborah","family":"McCahon","sequence":"additional","affiliation":[{"name":"School of Health and Population Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F.D. Richard","family":"Hobbs","sequence":"additional","affiliation":[{"name":"University of Oxford"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lesley M.","family":"Roberts","sequence":"additional","affiliation":[{"name":"School of Health and Population Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2012,8,1]]},"reference":[{"key":"S1463423612000230_manual_ref-14","doi-asserted-by":"crossref","first-page":"2591","DOI":"10.1001\/jama.292.21.2591","article-title":"Thyroid status, disability and cognitive function, and survival in old age","volume":"292","author":"Gussekloo","year":"2004","journal-title":"Journal of the American Medical Association"},{"key":"S1463423612000230_manual_ref-29","doi-asserted-by":"publisher","DOI":"10.1001\/jama.291.2.228"},{"key":"S1463423612000230_manual_ref-27","doi-asserted-by":"crossref","first-page":"1365","DOI":"10.1001\/jama.2010.1361","article-title":"Subclinical hypothyroidism and the risk of coronary heart disease and mortality","volume":"304","author":"Rodondi","year":"2010","journal-title":"Journal of the American Medical Association"},{"key":"S1463423612000230_manual_ref-31","doi-asserted-by":"crossref","first-page":"539","DOI":"10.1136\/bmj.313.7056.539","article-title":"Consensus statement for good practice and audit measures in the management of hypothyroidism and hyperthyroidism. The Research Unit of the Royal College of Physicians of London, the Endocrinology and Diabetes Committee of the Royal College of Physicians of London, and the Society for Endocrinology","volume":"313","author":"Vanderpump","year":"1996","journal-title":"British Medical Journal"},{"key":"S1463423612000230_manual_ref-22","unstructured":"Noble, M. , Wright, G.\n                                                  Dibben, C. 2010: The English indices of\n                                                  deprivation 2004 (revised) [online]. Retrieved\n                                                  April 2012 from\n                                                  http:\/\/www.communities.gov.uk\/documents\/communities\/pdf\/131209.pdf"},{"key":"S1463423612000230_manual_ref-28","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1016\/S0889-8529(05)70186-9","article-title":"Serum thyroid-stimulating hormone measurement for assessment of thyroid function and disease","volume":"30","author":"Ross","year":"2001","journal-title":"Endocrinology and Metabolism Clinics of North America"},{"key":"S1463423612000230_manual_ref-9","doi-asserted-by":"crossref","first-page":"18","DOI":"10.7326\/0003-4819-101-1-18","article-title":"l-Thyroxine therapy in subclinical hypothyroidism. 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Retrieved April 2012 from\n                                                  http:\/\/www.cks.nhs.uk\/hypothyroidism"},{"key":"S1463423612000230_manual_ref-7","doi-asserted-by":"crossref","first-page":"2064","DOI":"10.1210\/jcem.84.6.5733","article-title":"Left ventricular diastolic dysfunction in patients with subclinical hypothyroidism","volume":"84","author":"Biondi","year":"1999","journal-title":"Journal of Clinical Endocrinology and Metabolism"},{"key":"S1463423612000230_manual_ref-12","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1071\/HC10029","article-title":"A raised thyroid stimulating hormone result \u2013 a 12-month follow-up study in general practice","volume":"2","author":"Gibbons","year":"2010","journal-title":"Journal of Primary Health Care"},{"key":"S1463423612000230_manual_ref-19","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1007\/s10198-005-0300-7","article-title":"Comparison of general practitioner records and patient self-report questionnaires for estimation of costs","volume":"6","author":"Mistry","year":"2005","journal-title":"European Journal of Health Economics"},{"key":"S1463423612000230_manual_ref-30","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2265.1995.tb01894.x"},{"key":"S1463423612000230_manual_ref-24","first-page":"107","article-title":"Thyroxine prescription in the community: serum thyroid stimulating hormone level assays as an indicator of under treatment or over treatment","volume":"43","author":"Parle","year":"1993","journal-title":"British Journal of General Practice"},{"key":"S1463423612000230_manual_ref-8","doi-asserted-by":"crossref","first-page":"526","DOI":"10.1001\/archinte.160.4.526","article-title":"The Colorado thyroid disease prevalence study","volume":"160","author":"Canaris","year":"2000","journal-title":"Archives of Internal Medicine"},{"key":"S1463423612000230_manual_ref-33","doi-asserted-by":"crossref","first-page":"4809","DOI":"10.1210\/jc.2006-1557","article-title":"Prevalence of subclinical thyroid dysfunction and its relation to socioeconomic deprivation in the elderly: a community-based cross-sectional survey","volume":"91","author":"Wilson","year":"2006","journal-title":"Journal of Clinical Endocrinology and Metabolism"},{"key":"S1463423612000230_manual_ref-13","doi-asserted-by":"crossref","first-page":"537","DOI":"10.1111\/j.1365-2265.1981.tb00699.x","article-title":"Spontaneous hypothyroidism in symptomless autoimmune thyroiditis. A long-term follow-up study","volume":"15","author":"Gordin","year":"1981","journal-title":"Clinical Endocrinology (Oxford)"},{"key":"S1463423612000230_manual_ref-11","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1071\/HC09215","article-title":"The reality of subclinical hypothyroidism in general practice","volume":"1","author":"Gibbons","year":"2009","journal-title":"Journal of Primary Health Care"},{"key":"S1463423612000230_manual_ref-35","first-page":"771","article-title":"Estimation of tissue hypothyroidism by a new clinical score: evaluation of patients with various grades of hypothyroidism and controls","volume":"82","author":"Zulewski","year":"1997","journal-title":"Journal of Clinical Endocrinology and Metabolism"},{"key":"S1463423612000230_manual_ref-15","doi-asserted-by":"crossref","first-page":"744","DOI":"10.1007\/BF02598988","article-title":"Does treatment with l-thyroxine influence health status in middle-aged and older adults with subclinical hypothyroidism?","volume":"11","author":"Jaeschke","year":"1996","journal-title":"Journal of General Internal Medicine"},{"key":"S1463423612000230_manual_ref-26","doi-asserted-by":"crossref","first-page":"1715","DOI":"10.1210\/jc.2006-1869","article-title":"The beneficial effect of l-thyroxine on cardiovascular risk factors, endothelial function, and quality of life in subclinical hypothyroidism: randomised, crossover trial","volume":"92","author":"Razvi","year":"2007","journal-title":"Journal of Clinical Endocrinology and Metabolism"},{"key":"S1463423612000230_manual_ref-32","first-page":"CD003419","article-title":"Thyroid hormone replacement for subclinical hypothyroidism","author":"Villar","year":"2007","journal-title":"Cochrane Database System Review"},{"key":"S1463423612000230_manual_ref-34","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1016\/0300-2977(94)00089-R","article-title":"Subclinical hypothyroidism and hyperthyroidism. I. Prevalence and clinical relevance","volume":"46","author":"Wiersinga","year":"1995","journal-title":"The Netherlands Journal of Medicine"},{"key":"S1463423612000230_manual_ref-16","unstructured":"Mayo Clinic. 2007:\n                                                  Practical approach to the treatment of subclinical\n                                                  hypothyroidism [online]. Retrieved April 2012 from\n                                                  http:\/\/www.mayoclinic.org\/mcitems\/mc5000-mc5999\/mc5810-1206.pdf"},{"key":"S1463423612000230_manual_ref-10","first-page":"2993","article-title":"Clinical review 115: effect of thyroxine therapy on serum lipoproteins in patients with mild thyroid failure: a quantitative review of the literature","volume":"85","author":"Danese","year":"2000","journal-title":"Journal of Clinical Endocrinology and Metabolism"},{"key":"S1463423612000230_manual_ref-5","first-page":"776","article-title":"Subclinical hypothyroidism: deciding when to treat","volume":"57","author":"Adlin","year":"1998","journal-title":"American Family Physician"},{"key":"S1463423612000230_manual_ref-23","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1111\/j.1365-2265.1988.tb00250.x","article-title":"A double-blind cross-over 12-month study of l-thyroxine treatment of women with \u2018subclinical\u2019 hypothyroidism","volume":"29","author":"Nystrom","year":"1988","journal-title":"Clinical Endocrinology"},{"key":"S1463423612000230_manual_ref-18","doi-asserted-by":"crossref","first-page":"1533","DOI":"10.1001\/archinte.167.14.1533","article-title":"Serum thyrotropin measurements in the community: five-year follow-up in a large network of primary care physicians","volume":"167","author":"Meyerovitch","year":"2007","journal-title":"Archives of Internal Medicine"},{"key":"S1463423612000230_manual_ref-20","doi-asserted-by":"publisher","DOI":"10.1210\/jcem.86.3.7291"},{"key":"S1463423612000230_manual_ref-17","doi-asserted-by":"publisher","DOI":"10.1210\/jcem.86.10.7973"},{"key":"S1463423612000230_manual_ref-6","unstructured":"Association for Clinical\n                                                  Biochemistry, British Thyroid Association and\n                                                  British Thyroid Foundation. 2006: UK Guidelines\n                                                  for the use of thyroid function tests [online].\n                                                  Retrieved April 2012 from\n                                                  http:\/\/wwwclinbiochem.info\/tftguide2006pdf"},{"key":"S1463423612000230_manual_ref-25","doi-asserted-by":"crossref","first-page":"3623","DOI":"10.1210\/jc.2009-2571","article-title":"A randomised controlled trial of the effect of thyroxine replacement on cognitive function in community dwelling elderly subjects with subclinical hypothyroidism: the Birmingham Elderly Study","volume":"95","author":"Parle","year":"2010","journal-title":"Journal of Clinical Endocrinology and Metabolism"}],"container-title":["Primary Health Care Research &amp; Development"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S1463423612000230","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T09:16:01Z","timestamp":1780650961000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S1463423612000230\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,8,1]]},"references-count":31,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2013,4]]}},"alternative-id":["S1463423612000230"],"URL":"https:\/\/doi.org\/10.1017\/s1463423612000230","relation":{},"ISSN":["1463-4236","1477-1128"],"issn-type":[{"value":"1463-4236","type":"print"},{"value":"1477-1128","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,8,1]]}}}