Evidence map›Paper›PMID 33382429›Full record

ArticleThe Journal of clinical endocrinology and metabolism2021

Limited Genetic Overlap Between Overt Hashimoto's Thyroiditis and Graves' Disease in Twins: A Population-based Study.

Jakob Skov, Jan Calissendorff, Daniel Eriksson, Patrik Magnusson, Olle Kämpe, Sophie Bensing, Ralf Kuja-Halkola

Open access · bronzeAbstract readTwin Study
In one paragraph

Article in The Journal of clinical endocrinology and metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
1.7field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Article
  5. Article
  6. Review
  7. Review
  8. Familial Risk of Hashimoto's Thyroiditis in a Large Genealogical Database.The Journal of clinical endocrinology and metabolism · 2025
    Article
  9. Review
  10. Graves' disease: moving forwards.Archives of disease in childhood · 2023
    Review
  11. Article
  12. Review
  13. Article
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  15. 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

7 authors at 3 institutions in 2 countries.

Jakob SkovDepartment of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
Jan CalissendorffDepartment of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
Daniel ErikssonDepartment of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
Patrik MagnussonDepartment of Medical Epidemiology and Biostatistics Karolinska Institutet, Stockholm, Sweden.
Olle KämpeDepartment of Endocrinology, Inflammation and Infection Theme, Karolinska University Hospital, Stockholm, Sweden.
Sophie BensingDepartment of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
Ralf Kuja-HalkolaDepartment of Medical Epidemiology and Biostatistics Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet · SEKarolinska University Hospital · SEUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextHashimoto's thyroiditis (HT) and Graves' disease (GD) are known to coaggregate in families, but the magnitude and nature of a shared etiology is unknown.

objectivesTo estimate the shared genetic influence on overt HT and GD and to examine if the heritability differs between men and women. DESIGN, SETTING, AND PATIENTS: We used national health registries to identify cases of HT and GD in a cohort of 110 814 Swedish twins. By comparing intra-class and cross-twin cross-trait correlations in dizygotic and monozygotic twins, we calculated heritability and the proportions thereof shared between the diseases. Univariate estimates of heritability were calculated by sex.

resultsThe heritability for HT and GD was 65% (95% CI, 61-70) and 63% (95% CI, 55-72), respectively. The genetic correlation was 0.35 (95% CI, 0.20-0.50) and shared genetic effects accounted for 8% of the variance for both HT and GD. Univariate heritability was significantly higher in men than in women for HT (90% vs 60%, P < 0.001) but not for GD (79% vs 63%, P = 0.085).

conclusionsFrom a genetic perspective, HT and GD appear to be only modestly related diseases. Hence, the term "autoimmune thyroid disease," used to cluster these disorders, may have limited validity in a genetic context. Moreover, the mechanisms contributing to HT are partly different for the sexes, with genetic components more important in men.

Indexed as

AdultAgedAged, 80 and overCohort StudiesDiseases in TwinsFemaleGenetic Predisposition to DiseaseGraves DiseaseHashimoto DiseaseHumansMaleMiddle AgedRegistriesSwedenTwins, DizygoticTwins, Monozygoticgeneticshyperthyroidismhypothyroidismtwin studies

Identifiers

PMID33382429
PMCPMC7993582
OpenAlexW3118082754

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.