Evidence map›Paper›PMID 28049387›Full record

ArticleThyroid : official journal of the American Thyroid Association2017

Stimulation of Thyroid Function by Human Chorionic Gonadotropin During Pregnancy: A Risk Factor for Thyroid Disease and a Mechanism for Known Risk Factors.

Tim I M Korevaar, Yolanda B de Rijke, Layal Chaker, Marco Medici, Vincent W V Jaddoe, Eric A P Steegers, Theo J Visser, Robin P Peeters

Abstract read
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In one paragraph

Article in Thyroid : official journal of the American Thyroid Association, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 3 pooled it
4.8field-weighted citation impact, top 4% 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

33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 78 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Development and Validation of Machine-Learning-Based Prediction Models for Thyroid Diseases During Pregnancy.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Article
  6. Review
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  11. Molecular pathways in placental-fetal development and disruption.Molecular and cellular endocrinology · 2024
    Review
  12. Article
  13. Review
  14. The Thyroid Hormone Axis and Female Reproduction.International journal of molecular sciences · 2023
    Review
  15. Article
  16. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Tim I M Korevaar1 The Generation R Study Group, Erasmus Medical Center , Rotterdam, The Netherlands .
Yolanda B de Rijke4 Department of Clinical Chemistry, Erasmus Medical Center - Sophia Children's Hospital , Rotterdam, The Netherlands .
Layal Chaker1 The Generation R Study Group, Erasmus Medical Center , Rotterdam, The Netherlands .
Marco Medici1 The Generation R Study Group, Erasmus Medical Center , Rotterdam, The Netherlands .
Vincent W V Jaddoe1 The Generation R Study Group, Erasmus Medical Center , Rotterdam, The Netherlands .
Eric A P Steegers7 Department of Obstetrics and Gynecology, Erasmus Medical Center - Sophia Children's Hospital , Rotterdam, The Netherlands .
Theo J Visser1 The Generation R Study Group, Erasmus Medical Center , Rotterdam, The Netherlands .
Robin P Peeters1 The Generation R Study Group, Erasmus Medical Center , Rotterdam, The Netherlands .
Erasmus MC · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThyroid autoimmunity is a major risk factor for gestational thyroid disease, and recently various other risk factors have been identified, including maternal age, body mass index (BMI) and parity. Human chorionic gonadotropin (hCG) is an important determinant of gestational thyroid function, yet it is unknown to what extent differences in hCG concentration affect the risk for thyroid disease. We have recently shown that thyroperoxidase antibody positivity impairs the thyroidal response to hCG stimulation, which may suggest that this is a mechanism through which thyroid autoimmunity acts as a risk factor for thyroid disease.

objectiveThe purpose of this study is to determine whether hCG is a risk factor for thyroid disease entities and whether recently identified risk factors for thyroid disease may influence the thyroidal response to hCG stimulation.

methodsHuman chorionic gonadotropin, thyrotropin (TSH), and free thyroxine (FT4) were measured in 5435 pregnant women participating in a prospective cohort. The association of hCG with thyroid disease entities, and the association of known risk factors with thyroidal response to hCG stimulation were studied using multivariable linear regression models.

resultsHigher hCG concentrations were associated with a higher risk of subclinical and overt hyperthyroidism. Lower hCG concentrations were associated with a higher risk of hypothyroxinemia. In contrast, hCG concentrations were not associated with subclinical hypothyroidism. Further analyses showed that in women with hypothyroxinemia, high hCG concentrations still suppressed TSH. However, in women with subclinical hypothyroidism, high hCG concentrations were not associated with higher FT4. Higher BMI, male fetal sex, and maternal parity >2 were associated with a lower thyroidal response to hCG stimulation.

conclusionsHuman chorionic gonadotropin is associated with the risk of (subclinical) hyperthyroidism and hypothyroxinemia, but not with the risk of (subclinical) hypothyroidism. Women with hypothyroxinemia have a normal response to thyroidal stimulation by hCG, but this was abnormal in women with subclinical hypothyroidism. Known risk factors for thyroid dysfunction (BMI and parity), and also male fetal sex, are associated with a lower thyroidal response to hCG stimulation.

Indexed as

AdultChorionic GonadotropinCohort StudiesFemaleHumansHyperthyroidismHypothyroidismNetherlandsPregnancyPregnancy ComplicationsProspective StudiesRisk FactorsThyrotropinThyroxineYoung AdultChorionic GonadotropinThyrotropinThyroxineFT4hCGpregnancyTSH

Identifiers

PMID28049387
OpenAlexW2591733167

What OpenQuestion holds

Textmetadata
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.