Evidence map›Paper›PMID 34772378›Full record

ArticleBMC endocrine disorders2021

Association between vitamin D deficiency and hypothyroidism: results from the National Health and Nutrition Examination Survey (NHANES) 2007-2012.

Sandeep Appunni, Muni Rubens, Venkataraghavan Ramamoorthy, Anshul Saxena, Raees Tonse, Emir Veledar, Peter McGranaghan

Open access · goldAbstract read
In one paragraph

Article in BMC endocrine disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Knowledge, Attitude and Practices Toward Vitamin D: A Cross-Sectional Study from Jordan.Medical archives (Sarajevo, Bosnia and Herzegovina) · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Autoimmune Thyroiditis and Vitamin D.International journal of molecular sciences · 2024
    Review
  11. Article
  12. Article
  13. Relation between vitamin D and adolescents' serum prolactin.Przeglad menopauzalny = Menopause review · 2023
    Article
  14. Article
  15. Article
  16. Absence of a relationship between vitamin D and Graves' orbitopathy.Journal of endocrinological investigation · 2023
    Article
  17. Article
  18. Article
  19. Observational
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Sandeep AppunniDepartment of Biochemistry, Government Medical College, Kozhikode, Kerala, India.
Muni RubensMiami Cancer Institute, Miami, Florida, USA.
Venkataraghavan RamamoorthyBaptist Health South Florida, Miami, Florida, USA.
Anshul SaxenaBaptist Health South Florida, Miami, Florida, USA.
Raees TonseMiami Cancer Institute, Miami, Florida, USA.
Emir VeledarBaptist Health South Florida, Miami, Florida, USA.
Peter McGranaghanMiami Cancer Institute, Miami, Florida, USA. peter.mcgranaghan@charite.de.
Baptist Health South Florida · USMiami Heart Research Institute · USGovernment Medical College · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMany smaller studies have previously shown a significant association between thyroid autoantibody induced hypothyroidism and lower serum vitamin D levels. However, these finding have not been confirmed by large-scale studies. In this study, we evaluated the relationship between hypothyroidism and vitamin D levels using a large population-based data.

methodsFor this study, we used National Health and Nutrition Examination Survey (NHANES) during the years 2007-2012. We categorized participants into three clinically relevant categories based on vitamin D levels: optimal, intermediate and deficient. Participants were also split into hypothyroid and hyperthyroid. Weighted multivariable logistic regression analyses were used to calculate the odds of being hypothyroid based on vitamin D status.

resultsA total of 7943 participants were included in this study, of which 614 (7.7%) were having hypothyroidism. Nearly 25.6% of hypothyroid patients had vitamin D deficiency, compared to 20.6% among normal controls. Adjusted logistic regression analyses showed that the odds of developing hypothyroidism were significantly higher among patients with intermediate (adjusted odds ratio [aOR], 1.7, 95% CI: 1.5-1.8) and deficient levels of vitamin D (aOR, 1.6, 95% CI: 1.4-1.9).

conclusionLow vitamin D levels are associated with autoimmune hypothyroidism. Healthcare initiatives such as mass vitamin D deficiency screening among at-risk population could significantly decrease the risk for hypothyroidism in the long-term.

Indexed as

AdultAgedAutoantibodiesFemaleHumansHypothyroidismLogistic ModelsMaleMiddle AgedMultivariate AnalysisNutrition SurveysOdds RatioUnited StatesVitamin D Deficiencyanti-thyroglobulinanti-thyroid autoantibodiesAutoantibodiesAutoimmuneHypothyroidismLow vitamin DThyroglobulinThyroid peroxidase

Identifiers

PMID34772378
PMCPMC8590325
OpenAlexW3212362981

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.