Evidence map›Paper›PMID 35346212›Full record

SynthesisNutrition journal2022

Evaluation of the association between maternal folic acid supplementation and the risk of congenital heart disease: a systematic review and meta-analysis.

Zhengpei Cheng, Rui Gu, Zenglin Lian, Harvest F Gu

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Nutrition journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Review
  3. Folic acid supplementation on congenital heart disease and its dual character.Current research in pharmacology and drug discovery · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Review
  9. Article
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  11. 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

4 authors at 2 institutions in 2 countries.

Zhengpei ChengSchool of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
Rui GuCollege of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China.
Zenglin LianInstitute of Biological Chinese Medicine, Beijing Yichuang Institute of Biotechnology Industry, Beijing, China.
Harvest F GuSchool of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China. feng.gu@cpu.edu.cn.ORCID 0000-0003-4578-5449
China Pharmaceutical University · CNNanjing Tech University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFolic acid (FA), as a synthetic form of folate, has been widely used for dietary supplementation in pregnant women. The preventive effect of FA supplementation on the occurrence and recurrence of fetal neural tube defects (NTD) has been confirmed. Incidence of congenital heart diseases (CHD), however, has been parallelly increasing worldwide. The present study aimed to evaluate whether FA supplementation is associated with a decreased risk of CHD.

methodsWe searched the literature using PubMed, Web of Science and Google Scholar, for the peer-reviewed studies which reported CHD and FA and followed with a meta-analysis. The study-specific relative risks were used as summary statistics for the association between maternal FA supplementation and CHD risk. Cochran's Q and I

resultsMaternal FA supplementation was found to be associated with a decreased risk of CHD (OR = 0.82, 95% CI: 0.72-0.94). However, the heterogeneity of the association was high (P < 0.001, I

conclusionsData from the present study indicate that the heterogeneity of the association between maternal FA supplementation and CHD is high and suggest that the real relationship between maternal FA supplementation and CHD may need to be further investigated with well-designed clinical studies and biological experiments.

Indexed as

Heart Defects, CongenitalNeural Tube DefectsDietary SupplementsFemaleFolic AcidHumansPregnancyPrenatal CareFolic AcidAssociationAtrial septal defectCongenital heart diseaseFolic acidHeterogeneity

Identifiers

PMID35346212
PMCPMC8962131
OpenAlexW4220679646

What OpenQuestion holds

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LicenceCC BY
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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.