Evidence map›Paper›PMID 21052862›Full record

ArticleIrish journal of medical science2011

Periconceptional folic acid prevents miscarriage in Irish families with neural tube defects.

J Byrne

Abstract read
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In one paragraph

Article in Irish journal of medical science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 40% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Increasing the Chances of Natural Conception: Opinion Statement from the the Brazilian Federation of Gynecology and Obstetrics Associations - FEBRASGO - Committee of Gynecological Endocrinology.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2019
    Article
  8. Diet and fertility: a review.American journal of obstetrics and gynecology · 2018
    Review
  9. Observational
  10. Article
  11. Review
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  13. 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

1 author at 1 institution in 1 country.

J ByrneBoyne Research Institute, Duke House, Duke Street, Drogheda, Ireland. jbyrne@boyneresearch.ie
Boyne Research Institute · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMiscarriages occur to excess in sibships with neural tube defects (NTDs) and among maternal versus paternal relatives in NTD families. Folic acid prevents most NTDs. Its potential to prevent miscarriages has been controversial.

aimWe evaluated the relationship of maternal line and periconceptional folic acid with miscarriage.

methodsFirst cousins in Irish families with NTDs were interviewed about pregnancy outcomes and the health of their offspring.

resultsMiscarriages were not more frequent among pregnancies of maternal versus paternal first cousins. Folic acid intake during early pregnancy significantly reduced the risk of miscarriage from 15.7 to 9.6%, for an adjusted odds ratio of 0.37 (95% confidence interval 0.19, 0.72, p = 0.005).

conclusionsFolic acid during pregnancy was associated with a reduction of approximately 60% in miscarriages. Miscarriages are common-one in every eight pregnancies in this study. If incorporated into pre-pregnancy counseling, these results could have significant public health impact.

Indexed as

FamilyPregnancy OutcomeAbortion, SpontaneousFemaleFolic AcidHumansIrelandLogistic ModelsNeural Tube DefectsPregnancyVitamin B ComplexFolic AcidVitamin B Complex

Identifiers

PMID21052862
OpenAlexW2085826958

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.