Evidence map›Paper›PMID 20668051›Full record

ArticleThe American journal of clinical nutrition2010

Effect of maternal calcium supplementation on offspring blood pressure in 5- to 10-y-old rural Gambian children.

Sophie Hawkesworth, Yankuba Sawo, Anthony J C Fulford, Gail R Goldberg, Landing M A Jarjou, Ann Prentice, Sophie E Moore

Open access · greenAbstract readControlled Clinical Trial
In one paragraph

Article in The American journal of clinical nutrition, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 6 pooled it
3.8field-weighted citation impact, top 7% 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

19 citing papers in PubMed, 6 syntheses or guidelines pooled it, 40 citations in OpenAlex.

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  14. A systematic review on the effects of maternal calcium supplementation on offspring's blood pressure.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2015
    Review
  15. Review
  16. Article
  17. Dietary mineral supplies in Africa.Physiologia plantarum · 2014
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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

7 authors at 3 institutions in 2 countries.

Sophie HawkesworthMedical Research Council International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom. sophie.hawkesworth@lshtm.ac.uk
Yankuba Sawo
Anthony J C Fulford
Gail R Goldberg
Landing M A Jarjou
Ann Prentice
Sophie E Moore
MRC Unit the Gambia · GMLondon School of Hygiene & Tropical Medicine · GBMedical Research Council · GB

Funding

Medical Research Council MC_U105960371
6 · The paper itself

Abstract

backgroundEvidence suggests that increased maternal calcium intake during pregnancy may result in lower offspring blood pressure, prompting calls for more robust data in this field, particularly in settings of habitually low calcium intake.

objectiveThe objective was to investigate the effect of maternal calcium supplementation on blood pressure in offspring by recruiting children born after a randomized, double-blind, placebo-controlled trial of calcium supplementation during pregnancy.

designChildren (n = 389) from a rural area of The Gambia (mean age: 7.4 ± 1.2 y; range: 5-10 y), whose mothers received a calcium supplement (1500 mg Ca/d from 20 wk of gestation until delivery) or placebo, were followed up in West Africa. Blood pressure was assessed under standardized conditions with use of the Omron 705IT automated oscillometric device (Morton Medical Ltd, London, United Kingdom), and anthropometric and body composition (bioelectrical impedance) measurements were also made.

resultsThe analysis was restricted to 350 children born at term, which represented 64% of original trial births. There was no difference in systolic (adjusted mean difference: -0.04 mm Hg; 95% CI: -1.78, 1.69 mm Hg) or diastolic (adjusted mean difference: 0.25 mm Hg; 95% CI: -1.27, 1.77 mm Hg) blood pressure between children whose mothers had received calcium and those who received placebo. No interaction between childhood body mass index (in kg/m(2); mean: 14.0) and maternal calcium supplementation was observed in this study.

conclusionCalcium supplementation in the second half of pregnancy in Gambian women with very low habitual calcium intakes may not result in lower offspring blood pressure at 5-10 y of age.

Indexed as

Dietary SupplementsBlood PressureBody Mass IndexCalcium, DietaryCardiovascular DiseasesChildChild, PreschoolDiet RecordsFemaleGambiaHeart RateHumansLipidsMaleMiddle AgedPatient SelectionCalcium, DietaryLipids

Identifiers

PMID20668051
PMCPMC3995154
OpenAlexW2144564454

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.