Evidence map›Paper›PMID 37922258›Full record

SynthesisPloS one2023

Maternal folic acid supplementation and the risk of ankyloglossia (tongue-tie) in infants; a systematic review.

Gal Rubin, Catherine Stewart, Laura McGowan, Jayne V Woodside, Geraldine Barrett, Keith M Godfrey, Jennifer Hall

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

1 citing paper in PubMed, 4 citations in OpenAlex.

  1. Article
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

7 authors at 2 institutions in 1 country.

Gal RubinUCL EGA Institute for Women's Health, Reproductive Health Research Dept, UCL, London, United Kingdom.ORCID 0000-0003-1467-8157
Catherine StewartUCL EGA Institute for Women's Health, Reproductive Health Research Dept, UCL, London, United Kingdom.ORCID 0000-0002-7204-7356
Laura McGowanCentre for Public Health, Institute for Global Food Security, Queen's University Belfast, Belfast, Ireland.
Jayne V WoodsideCentre for Public Health, Institute for Global Food Security, Queen's University Belfast, Belfast, Ireland.
Geraldine BarrettUCL EGA Institute for Women's Health, Reproductive Health Research Dept, UCL, London, United Kingdom.ORCID 0000-0002-9738-1051
Keith M GodfreyMRC Lifecourse Epidemiology Centre and NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom.
Jennifer HallUCL EGA Institute for Women's Health, Reproductive Health Research Dept, UCL, London, United Kingdom.ORCID 0000-0002-2084-9568
University College London · GBUniversity Hospital Southampton NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMaternal folic acid supplementation is protective against the development of neural tube defects (NTDs) in babies. However, recent public-facing communications have raised concerns about a causal relationship between folic acid supplementation, particularly after the first trimester, and ankyloglossia (tongue-tie) in infants. Non-evidence-based communications are potentially harmful because they could adversely affect adherence to folic acid supplementation, increasing NTD occurrence. This study aimed to review evidence on the relationships between maternal folic acid supplementation during preconception and/or pregnancy and the risk of ankyloglossia in infants.

methodsWe searched the databases MEDLINE, EMBASE, Cochrane CENTRAL, and Scopus. We searched for observational, and interventional studies, and systematic reviews investigating the effect of maternal folic acid supplementation during preconception or pregnancy on the occurrence of ankyloglossia in offspring. The search was registered on PROSPERO on 01/12/2022, ID: CRD42022375862.

resultsThe database searches yielded 93 articles. After removing duplicates and screening titles and abstracts, 26 remained. One article was judged relevant for inclusion in analyses; a case-control study that directly mentions the relationship between folic acid supplementation and ankyloglossia. This study reported that regular intake of folic acid supplements was higher in women with infants with ankyloglossia. However, this study has limitations regarding design, selection bias, and confounding, calling the findings into question.

conclusionsInsufficient evidence exists for a relationship between folic acid supplementation and ankyloglossia. Currently, the benefits of folic acid supplementation far outweigh the risks. This must be clearly communicated to patients by their clinicians during preconception and antenatal care.

Indexed as

AnkyloglossiaNeural Tube DefectsCase-Control StudiesDietary SupplementsFemaleFolic AcidHumansInfantPregnancyTongueFolic Acid

Identifiers

PMID37922258
PMCPMC10624271
OpenAlexW4388286341

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.