Evidence map›Paper›PMID 34602240›Full record

ArticleBiological psychiatry2021

Maternal Vitamin D Levels During Pregnancy and Offspring Autism Spectrum Disorder.

Andre Sourander, Subina Upadhyaya, Heljä-Marja Surcel, Susanna Hinkka-Yli-Salomäki, Keely Cheslack-Postava, Sanju Silwal, Minna Sucksdorff, Ian W McKeague, Alan S Brown

Open access · greenAbstract read
In one paragraph

Article in Biological psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
5.2field-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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Steroid hormone pathways, vitamin D and autism: a systematic review.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Vitamin D and Vitamin BDiseases (Basel, Switzerland) · 2026
    Review
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  9. Review
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  11. Article
  12. Article
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  14. Article
  15. The Autism Spectrum Disorder and Its Possible Origins in Pregnancy.International journal of environmental research and public health · 2024
    Review
  16. Article
  17. Article
  18. Review
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  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Andre SouranderResearch Centre for Child Psychiatry, Department of Child Psychiatry, University of Turku, Turku, Finland; INVEST (Inequalities, Interventions and a New Welfare State) Research Flagship, University of Turku, Turku, Finland; Department of Child Psychiatry, Turku University Hospital, Turku, Finland; New York State Psychiatric Institute, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York. Electronic address: andsou@utu.fi.
Subina UpadhyayaResearch Centre for Child Psychiatry, Department of Child Psychiatry, University of Turku, Turku, Finland.
Heljä-Marja SurcelFaculty of Medicine, University of Oulu, Oulu, Finland; Biobank Borealis of Northern Finland, Oulu, Finland.
Susanna Hinkka-Yli-SalomäkiResearch Centre for Child Psychiatry, Department of Child Psychiatry, University of Turku, Turku, Finland.
Keely Cheslack-PostavaNew York State Psychiatric Institute, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York.
Sanju SilwalResearch Centre for Child Psychiatry, Department of Child Psychiatry, University of Turku, Turku, Finland.
Minna SucksdorffResearch Centre for Child Psychiatry, Department of Child Psychiatry, University of Turku, Turku, Finland; Department of Pediatrics, Turku University Hospital, Turku, Finland.
Ian W McKeagueDepartment of Biostatistics, Columbia University Mailman School of Public Health, New York, New York.
Alan S BrownNew York State Psychiatric Institute, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York; Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York.
University of Turku · FIColumbia University · USBorealis (Finland) · FIColumbia University Irving Medical Center · US

Funding

Prenatal Factors in Autism and other Psychiatric Outcomes in a National Birth CohortR01ES028125 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BROWN, ALAN STEWART · 2017 to 2021
$2.3M
NIEHS NIH HHS R01 ES028125
6 · The paper itself

Abstract

backgroundFindings from previous studies on maternal 25-hydroxyvitamin D [25(OH)D] levels during pregnancy and autism spectrum disorder (ASD) in offspring are inconsistent.

methodsThe association between maternal 25(OH)D levels during pregnancy and offspring ASD was examined using data from a nationwide population-based register with a nested case-control study design. The ASD cases (n = 1558) were born between 1987 and 2004 and received a diagnosis of ASD by 2015; cases were matched with an equal number of controls. Maternal 25(OH)D levels during pregnancy were measured using quantitative immunoassay from maternal sera collected during the first and early second trimesters and archived in the national biobank of the Finnish Maternity Cohort. Conditional logistic regression examined the association between maternal 25(OH)D levels and offspring ASD.

resultsIn the adjusted model, there was a significant association between increasing log-transformed maternal 25(OH)D levels and decreasing risk of offspring ASD (adjusted odds ratio [aOR] 0.75, 95% confidence interval [CI] 0.62-0.92, p = .005). Analyses by quintiles of maternal 25(OH)D levels revealed increased odds for ASD in the 2 lowest quintiles, <20 (aOR 1.36, 95% CI 1.03-1.79, p = .02) and 20-39 (aOR 1.31, 95% CI 1.01-1.70, p = .04), compared with the highest quintile. The increased risk of ASD was observed in association with deficient (<30 nmol/L) (aOR 1.44, 95% CI 1.15-1.81, p = .001) and insufficient (30-49.9 nmol/L) maternal 25(OH)D levels (aOR 1.26, 95% CI 1.04-1.52, p = .01) compared with sufficient levels.

conclusionsThis finding has implications for understanding the role of maternal vitamin D during fetal brain development and increased risk of ASD.

Indexed as

Autism Spectrum DisorderCase-Control StudiesCohort StudiesFemaleHumansMothersPregnancyVitamin DVitamin DASDAutism spectrum disorderMaternal sera 25(OH)DMaternal vitamin DPrenatal

Identifiers

PMID34602240
PMCPMC8752030
OpenAlexW3184532759

What OpenQuestion holds

Textmetadata
LicenceTDM
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.