Evidence map›Paper›PMID 29848946›Full record

Observational studyNutrients2018

Dietary Selenium Intake and Subclinical Hypothyroidism: A Cross-Sectional Analysis of the ELSA-Brasil Study.

Gustavo R G Andrade, Bartira Gorgulho, Paulo A Lotufo, Isabela M Bensenor, Dirce M Marchioni

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Nutrients, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 37 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Selenium nutritional status and thyroid dysfunction.Archives of endocrinology and metabolism · 2025
    Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Role of Selenium Deficiency in Pediatrics with Acquired Hypothyroidism.International journal of preventive medicine · 2021
    Article
  14. Article
  15. Review
  16. Article
  17. Article
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

5 authors at 3 institutions in 1 country.

Gustavo R G AndradeDepartment of Nutrition, School of Public Health, University of São Paulo, São Paulo CEP 03178-200, Brazil. gustavoandrade@usp.br.ORCID 0000-0003-4084-9247
Bartira GorgulhoDepartment of Food and Nutrition, School of Nutrition, Federal University of Mato Grosso, Cuiabá CEP 78060-900, Brazil. bartira.gorgulho@gmail.com.ORCID 0000-0002-1714-3548
Paulo A LotufoClinical and Epidemiological Research Center, University Hospital, University of São Paulo, São Paulo CEP 05508-000, Brazil. palotufo@usp.br.
Isabela M BensenorClinical and Epidemiological Research Center, University Hospital, University of São Paulo, São Paulo CEP 05508-000, Brazil. isabensenor@gmail.com.ORCID 0000-0002-6723-5678
Dirce M MarchioniDepartment of Nutrition, School of Public Health, University of São Paulo, São Paulo CEP 03178-200, Brazil. marchioni@usp.br.ORCID 0000-0002-6810-5779
Hospital Universitário da Universidade de São Paulo · BRUniversidade de São Paulo · BRUniversidade Federal de Mato Grosso · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Selenium (Se) participates in several enzymatic reactions necessary for regulating the homeostasis of thyroid hormones. We aimed to analyze the association between dietary Se intake and subclinical hypothyroidism. Baseline data from the Longitudinal Study of Adult Health (Estudo Longitudinal de Saúde do Adulto-ELSA-Brasil) in Brazil were analyzed, with a final sample size of 14,283 employees of both sexes aged 35⁻74 years. Dietary data was collected using a previously validated food frequency questionnaire. Subclinical hypothyroidism was categorized as thyroid-stimulating hormone levels of >4.0 IU/mL and free prohormone thyroxine levels within normal limits, without administering drugs for thyroid disease. A multiple logistic regression model was used to assess the relationship between the presence of subclinical hypothyroidism and tertiles of Se consumption. The prevalence of subclinical hypothyroidism in the study sample was 5.4% (95% confidence interval [CI], 3.8⁻7.0%). Compared with the first tertile of Se intake, the second (odds ratio [OR], 0.79; 95% CI, 0.65⁻0.96%) and third (OR, 0.72; 95% CI, 0.58⁻0.90%) tertiles were inversely associated with subclinical hypothyroidism, however further research is needed to confirm the involvement of Se in subclinical hypothyroidism using more accurate methodologies of dietary assessment and nutritional status to evaluate this relationship.

Indexed as

Asymptomatic DiseasesNutritional StatusAdultAgedBrazilCohort StudiesCross-Sectional StudiesDeficiency DiseasesDietDietary SupplementsHumansHypothyroidismLongitudinal StudiesMiddle AgedNutrition SurveysPrevalenceSeleniumThyrotropinThyroxineadultsdietseleniumsubclinical hypothyroidismthyroid

Identifiers

PMID29848946
PMCPMC6024881
OpenAlexW2805965942

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.