Evidence map›Paper›PMID 39931928›Full record

ArticleBJOG : an international journal of obstetrics and gynaecology2025

Maternal Calcium Intake at 36 Weeks' Gestation and Pre-Eclampsia Risk-A Cohort Study.

Anastasija Arechvo, Argyro Syngelaki, Laura A Magee, Sophie E Moore, Andrew Doel, Alan Wright, Kypros H Nicolaides, Peter von Dadelszen

Abstract read
In one paragraph

Article in BJOG : an international journal of obstetrics and gynaecology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. 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

8 authors.

Anastasija ArechvoHarris Birthright Research Centre for Fetal Medicine, King's College, London, UK.
Argyro SyngelakiHarris Birthright Research Centre for Fetal Medicine, King's College, London, UK.
Laura A MageeDepartment of Women and Children's Health, School of Life Course and Population Sciences, King's College London, London, UK.ORCID https://orcid.org/0000-0002-1355-610X
Sophie E MooreDepartment of Women and Children's Health, School of Life Course and Population Sciences, King's College London, London, UK.
Andrew DoelDepartment of Women and Children's Health, School of Life Course and Population Sciences, King's College London, London, UK.
Alan WrightInstitute of Health Research, University of Exeter, Exeter, UK.
Kypros H NicolaidesHarris Birthright Research Centre for Fetal Medicine, King's College, London, UK.ORCID https://orcid.org/0000-0003-1266-0711
Peter von DadelszenDepartment of Women and Children's Health, School of Life Course and Population Sciences, King's College London, London, UK.ORCID https://orcid.org/0000-0003-4136-3070

Funding

Fetal Medicine Foundation
6 · The paper itself

Abstract

objectiveThe objective of this study is to examine the association between dietary calcium intake (Ca) and pre-eclampsia (PE).

designCohort study.

settingInner-city hospital. POPULATION: A total of 2838 women with singleton pregnancies at 35

methodsOnline 24-h dietary recall questionnaire was used to measure Ca intake. In the low (< 700 mg/d) vs. adequate (≥ 700 mg/d) Ca intake groups, we compared the prevalence of PE-associated maternal risk factors and the incidence of PE. In multivariate regression, we examined the low Ca intake and PE relationship, adjusted for established PE risk factors (including blood pressure and angiogenic biomarkers) and any additional factors associated with low Ca intake specifically.

main outcome measurePE.

resultsOverall, 405 (14.3%) women had low Ca intake. Low (vs. adequate) Ca intake was associated with a higher incidence of PE (6.2% vs. 2.9%; odds ratio 2.2, 95% confidence interval 1.3-3.7), as well as more prevalent risk factors for PE, including Black ethnicity (34.1% vs. 11.8%), South Asian ethnicity (10.1% vs. 7.2%), high body mass index (29.8 vs. 28.3 kg/m

conclusionsAlthough some contribution from low Ca to the development of PE cannot be ruled out, after accounting for maternal characteristics, medical history and deprivation, low Ca intake did not make an independent contribution to the development of PE in this population of mixed-ethnicity women.

Indexed as

Calcium, DietaryPre-EclampsiaAdultCohort StudiesFemaleGestational AgeHumansIncidencePregnancyPregnancy Trimester, ThirdRisk FactorsSurveys and QuestionnairesCalcium, Dietarycalciumdeprivationmaternal nutritionpre‐eclampsia

Identifiers

PMID39931928
PMCPMC11969911

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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.