Evidence map›Paper›PMID 29899542›Full record

ArticleScientific reports2018

Prenatal iron exposure and childhood type 1 diabetes.

Ketil Størdal, Harry J McArdle, Helen Hayes, German Tapia, Marte K Viken, Nicolai A Lund-Blix, Margaretha Haugen, Geir Joner, Torild Skrivarhaug, Karl Mårild and 7 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 4 pooled it
3.1field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 4 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Evaluation of Fetal Exposures to Metals and Metalloids through Meconium Analyses: A Review.International journal of environmental research and public health · 2021
    Pooled it
  4. Pooled it
  5. Article
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  8. Article
  9. Prenatal iron overload induces hepatic oxidative stress and ferroptosis in offspring mice.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
    Article
  10. Review
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  12. Iron and Pregnancy.Advances in experimental medicine and biology · 2025
    Review
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  15. Review
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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

17 authors at 5 institutions in 3 countries.

Ketil StørdalDepartment of non-communicable diseases, Norwegian Institute of Public Health, Oslo, Norway. ketil.stordal@fhi.no.
Harry J McArdleThe Rowett Institute of Nutrition and Health, University of Aberdeen, Foresterhill, Aberdeen, Scotland, UK.
Helen HayesThe Rowett Institute of Nutrition and Health, University of Aberdeen, Foresterhill, Aberdeen, Scotland, UK.ORCID 0000-0001-5186-2696
German TapiaDepartment of non-communicable diseases, Norwegian Institute of Public Health, Oslo, Norway.
Marte K VikenDepartment of Medical Genetics, University of Oslo, Oslo University Hospital, Ullevål, Oslo, Norway.
Nicolai A Lund-BlixDepartment of non-communicable diseases, Norwegian Institute of Public Health, Oslo, Norway.
Margaretha HaugenDepartment of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway.
Geir JonerDepartment of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway.
Torild SkrivarhaugDepartment of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway.
Karl MårildDepartment of non-communicable diseases, Norwegian Institute of Public Health, Oslo, Norway.
Pål R NjølstadDepartment of Paediatrics and Adolescent Medicine, Haukeland University Hospital, Bergen, Norway.
Merete EggesbøDepartment of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway.
Siddhartha MandalDepartment of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway.
Christian M PageDepartment of non-communicable diseases, Norwegian Institute of Public Health, Oslo, Norway.ORCID 0000-0002-1897-3666
Stephanie J LondonNational Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, Durham, NC, 27709, USA.ORCID 0000-0003-4911-5290
Benedicte A LieDepartment of Medical Genetics, University of Oslo, Oslo University Hospital, Ullevål, Oslo, Norway.
Lars C SteneDepartment of non-communicable diseases, Norwegian Institute of Public Health, Oslo, Norway.
Norwegian Institute of Public Health · NOOslo University Hospital · NOUniversity of Aberdeen · GBHaukeland University Hospital · NONational Institutes of Health · US

Funding

Gene-Environment Interactions in an Autism Birth CohortU01NS047537 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI LIPKIN, W. IAN · 2003 to 2013
$27.0M
Genetic And Environmental Factors In Childhood Respiratory HealthZIAES049019 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI LONDON, STEPHANIE · 2009 to 2025
$6.8M
NIEHS NIH HHS N01 ES075558NINDS NIH HHS U01 NS047537
6 · The paper itself

Abstract

Iron overload due to environmental or genetic causes have been associated diabetes. We hypothesized that prenatal iron exposure is associated with higher risk of childhood type 1 diabetes. In the Norwegian Mother and Child cohort study (n = 94,209 pregnancies, n = 373 developed type 1 diabetes) the incidence of type 1 diabetes was higher in children exposed to maternal iron supplementation than unexposed (36.8/100,000/year compared to 28.6/100,000/year, adjusted hazard ratio 1.33, 95%CI: 1.06-1.67). Cord plasma biomarkers of high iron status were non-significantly associated with higher risk of type 1 diabetes (ferritin OR = 1.05 [95%CI: 0.99-1.13] per 50 mg/L increase; soluble transferrin receptor: OR = 0.91 [95%CI: 0.81-1.01] per 0.5 mg/L increase). Maternal but not fetal HFE genotypes causing high/intermediate iron stores were associated with offspring diabetes (odds ratio: 1.45, 95%CI: 1.04, 2.02). Maternal anaemia or non-iron dietary supplements did not significantly predict type 1 diabetes. Perinatal iron exposures were not associated with cord blood DNA genome-wide methylation, but fetal HFE genotype was associated with differential fetal methylation near HFE. Maternal cytokines in mid-pregnancy of the pro-inflammatory M1 pathway differed by maternal iron supplements and HFE genotype. Our results suggest that exposure to iron during pregnancy may be a risk factor for type 1 diabetes in the offspring.

Indexed as

Pregnancy ComplicationsAdolescentChildCohort StudiesDiabetes Mellitus, Type 1Dietary SupplementsFemaleGenotypeHemochromatosis ProteinHumansIncidenceIronIron OverloadMaleNorwayPregnancyHemochromatosis ProteinHFE protein, humanIron

Identifiers

PMID29899542
PMCPMC5998022
OpenAlexW2806001520

What OpenQuestion holds

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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.