Cited by 276Thyroid Disorders and TreatmentsThyroid and Parathyroid SurgeryThyroid Cancer Diagnosis and Treatment

The DOI matches its Crossref record; 63 of the 67 references it cites were found in a registry or an index.

Association of Thyroid Hormone Therapy With Quality of Life and Thyroid-Related Symptoms in Patients With Subclinical Hypothyroidism: A Systematic Review and Meta-analysis

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Abstract

Importance: The benefit of thyroid hormone therapy for subclinical hypothyroidism is uncertain. New evidence from recent large randomized clinical trials warrants an update of previous meta-analyses. Objective: To conduct a meta-analysis of the association of thyroid hormone therapy with quality of life and thyroid-related symptoms in adults with subclinical hypothyroidism. Data Sources: PubMed, EMBASE, ClinicalTrials.gov, Web of Science, Cochrane Library, CENTRAL, Emcare, and Academic Search Premier from inception until July 4, 2018. Study Selection: Randomized clinical trials that compared thyroid hormone therapy with placebo or no therapy in nonpregnant adults with subclinical hypothyroidism were eligible. Two reviewers independently evaluated eligibility based on titles and abstracts of all retrieved studies. Studies not excluded in this first step were independently assessed for inclusion after full-text evaluation by 2 reviewers. Data Extraction and Synthesis: Two independent reviewers extracted data, assessed risk of bias (Cochrane risk-of-bias tool), and evaluated the quality of evidence (GRADE tool). For synthesis, differences in clinical scores were transformed (eg, quality of life) into standardized mean differences (SMDs; positive values indicate benefit of thyroid hormone therapy; 0.2, 0.5, and 0.8 correspond to small, moderate, and large effects, respectively). Random-effects models for meta-analyses were applied. Main Outcomes and Measures: General quality of life and thyroid-related symptoms after a minimum follow-up of 3 months. Results: Overall, 21 of 3088 initially identified publications met the inclusion criteria, with 2192 adults randomized. After treatment (range, 3-18 months), thyroid hormone therapy was associated with lowering the mean thyrotropin value into the normal reference range compared with placebo (range, 0.5-3.7 mIU/L vs 4.6 to 14.7 mIU/L) but was not associated with benefit regarding general quality of life (n = 796; SMD, -0.11; 95% CI, -0.25 to 0.03; I2=66.7%) or thyroid-related symptoms (n = 858; SMD, 0.01; 95% CI, -0.12 to 0.14; I2=0.0%). Overall, risk of bias was low and the quality of evidence assessed with the GRADE tool was judged moderate to high. Conclusions and Relevance: Among nonpregnant adults with subclinical hypothyroidism, the use of thyroid hormone therapy was not associated with improvements in general quality of life or thyroid-related symptoms. These findings do not support the routine use of thyroid hormone therapy in adults with subclinical hypothyroidism.

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Research works printed but not linked: 5

  1. Ciconelli, 1999, Brazilian-Portuguese version of the SF-36: a reliable and valid quality of life outcome measure., Rev Bras Reumatol, 143
  2. Wechsler, 1997, Wechsler Memory Scale
  3. Golding, 1989, The Middlesex Elderly Assessment of Mental State
  4. Medical Research Council, 1992, The Speed and Capacity of Language-Processing Test
  5. Cochrane Effective Practice and Organisation of Care. Data collection form: EPOC resources for review authors. Oslo: Norwegian Knowledge Centre for the Health Services; 2017. https://epoc.cochrane.org/sites/epoc.cochrane.org/files/public/uploads/Resources-for-authors2017/good_practice_data_extraction_form.doc. Accessed July 6, 2018.

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Metadata

Authors
Feller, M., Snel, M., Moutzouri, E., Bauer, D. C., de Montmollin, M., Aujesky, D., Ford, I., Gussekloo, J., Kearney, P. M., Mooijaart, S., Quinn, T., Stott, D., Westendorp, R., Rodondi, N., & Dekkers, O. M.
Affiliations
  • University of Bern (CH)
  • Leiden University (NL)
  • University of California, San Francisco (US)
  • Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
  • University of Glasgow (GB)
  • University College Cork (IE)
  • University of Copenhagen (DK)
Corresponding author
Feller, Martin
Venue
JAMA
Published
2018-10-02
Volume
320
Issue
13
Pages
1349
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2894730508
Cited by
266
References
67
Citations by year
2026: 22 · 2025: 28 · 2024: 23 · 2023: 42 · 2022: 32 · 2021: 42 · 2020: 42 · 2019: 31 · 2018: 4
FWCI
4.58
Type
journal article
Language
en
Open access
Locations
  • JAMA (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion, cc-by-sa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • Bern Open Repository and Information System (University of Bern) (submittedVersion)
Funders
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (172676)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Cancer Diagnosis and Treatment
Keywords
subclinical hypothyroidism, thyroid hormone replacement, levothyroxine, quality of life, thyroid-stimulating hormone, TSH normalization, adults, risk of bias, quality of evidence, GRADE, standardized mean difference, risk of bias assessment
MeSH terms
Adult, Blood Pressure, Humans, Hypothyroidism, Quality of Life, Thyrotropin, Thyroxine, Practice Guidelines as Topic

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