Evidence map›Paper›PMID 32392279›Full record

ArticleThe Journal of clinical endocrinology and metabolism2020

Does Obesity Cause Thyroid Cancer? A Mendelian Randomization Study.

Jonathan Mark Fussey, Robin N Beaumont, Andrew R Wood, Bijay Vaidya, Joel Smith, Jessica Tyrrell

Open access · hybridAbstract read
In one paragraph

Article in The Journal of clinical endocrinology and metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 3 pooled it
7.9field-weighted citation impact, top 2% 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

38 citing papers in PubMed, 3 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Type 2 Diabetes and Cancer: An Umbrella Review of Observational and Mendelian Randomization Studies.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2021
    Pooled it
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  19. Thyroid Nodules and Obesity.Life (Basel, Switzerland) · 2023
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Jonathan Mark FusseyHead and Neck Surgery, Royal Devon and Exeter Hospital, Exeter, UK.
Robin N BeaumontGenetics of Complex Traits, College of Medicine and Health, University of Exeter, Exeter, UK.
Andrew R WoodGenetics of Complex Traits, College of Medicine and Health, University of Exeter, Exeter, UK.
Bijay VaidyaEndocrinology, Royal Devon and Exeter Hospital, Exeter, UK.
Joel SmithHead and Neck Surgery, Royal Devon and Exeter Hospital, Exeter, UK.
Jessica TyrrellGenetics of Complex Traits, College of Medicine and Health, University of Exeter, Exeter, UK.
Royal Devon and Exeter Hospital · GBUniversity of Exeter · GB

Funding

British Heart FoundationMedical Research Council MC_PC_17228Medical Research Council MC_QA137853Wellcome TrustWellcome Trust WT104150
6 · The paper itself

Abstract

backgroundThe incidence of thyroid cancer is rising, and relatively little is known about modifiable risk factors for the condition. Observational studies have suggested a link between adiposity and thyroid cancer; however, these are subject to confounding and reverse causality. Here, we used data from the UK Biobank and Mendelian randomization approaches to investigate whether adiposity causes benign nodular thyroid disease and differentiated thyroid cancer.

methodsWe analyzed data from 379 708 unrelated participants of European ancestry in the UK Biobank and identified 1812 participants with benign nodular thyroid disease and 425 with differentiated thyroid carcinoma. We tested observational associations with measures of adiposity and type 2 diabetes mellitus. One and 2-sample Mendelian randomization approaches were used to investigate causal relationships.

resultsObservationally, there were positive associations between higher body mass index (odds ratio [OR], 1.15; 95% confidence interval [CI], 1.08-1.22), higher waist-hip ratio (OR, 1.16; 95% CI, 1.09-1.23), and benign nodular thyroid disease, but not thyroid cancer. Mendelian randomization did not support a causal link for obesity with benign nodular thyroid disease or thyroid cancer, although it did provide some evidence that individuals in the highest quartile for genetic liability of type 2 diabetes had higher odds of thyroid cancer than those in the lowest quartile (OR, 1.45; CI, 1.11-1.90).

conclusionsContrary to the findings of observational studies, our results do not confirm a causal role for obesity in benign nodular thyroid disease or thyroid cancer. They do, however, suggest a link between type 2 diabetes and thyroid cancer.

Indexed as

AdiposityDiabetes Mellitus, Type 2FemaleGenetic Predisposition to DiseaseHumansMaleMendelian Randomization AnalysisMiddle AgedObesityThyroid Neoplasmsdiabetes mellitusmendelian randomizationmolecular epidemiologyobesitythyroid neoplasmstype 2

Identifiers

PMID32392279
PMCPMC7274488
OpenAlexW3022346253

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.