Evidence map›Paper›PMID 25410280›Full record

ArticleBMC pregnancy and childbirth2014

Serum calcium and magnesium levels in women presenting with pre-eclampsia and pregnancy-induced hypertension: a case-control study in the Cape Coast metropolis, Ghana.

Richard Kobina Dadzie Ephraim, Derick Nii Mensah Osakunor, Seth Wiredu Denkyira, Henrietta Eshun, Samuel Amoah, Enoch Odame Anto

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 3 pooled it
4.2field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 3 syntheses or guidelines pooled it, 84 citations in OpenAlex.

  1. Pooled it
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  5. Article
  6. Beyond magnesium sulphate - Rethinking magnesium's impact on maternal and foetal health in low to middle-income countries: A scoping review.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2026
    Article
  7. Article
  8. The association between serum magnesium levels and hypertensive disorders of pregnancy.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2025
    Article
  9. Article
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  12. The Association Between Diabetes Mellitus and Perianal Abscess: A Meta-Analysis.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025
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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

6 authors at 2 institutions in 1 country.

Richard Kobina Dadzie Ephraim
Derick Nii Mensah Osakunor
Seth Wiredu Denkyira
Henrietta Eshun
Samuel Amoah
Enoch Odame Anto
University of Cape Coast · GHKwame Nkrumah University of Science and Technology · GH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypertensive disorders of pregnancy are important causes of morbidity and mortality. The levels of calcium (Ca2+) and magnesium (Mg2+) in pregnancy may implicate their possible role in pregnancy-induced hypertension. This study assessed serum Ca2+ and Mg2+ levels in women with PIH (pregnancy-induced hypertension) and PE (pre-eclampsia), compared to that in normal pregnancy.

methodsThis case-control study was conducted on 380 pregnant women (≥20 weeks gestation) receiving antenatal care at three hospitals in the Cape Coast metropolis, Ghana. This comprised 120 women with PIH, 100 women with PE and 160 healthy, age-matched pregnant women (controls). Demographic, anthropometric, clinical and obstetric data were gathered using an interview-based questionnaire. Venous blood samples were drawn for the estimation of calcium and magnesium.

resultsSystolic blood pressure (SBP) and diastolic blood pressure (DBP) were significantly raised in women with PIH (p < 0.0001) and PE (p < 0.0001). Women with hypertensive disorders (PE and PIH) had significantly lower serum calcium and magnesium levels than those in the control group (p < 0.0001 each). Of those with PIH, SBP correlated positively with BMI (r = 0.575, p < 0.01) and Ca2+ correlated positively with Mg2+ (r = 0.494, p < 0.01). This was similar amongst the PE group for SBP and BMI as well as for Ca2+and Mg2+ but was not significant. Multivariate analysis showed that women aged ≥40 years were at a significant risk of developing PIH (OR = 2.14, p = 0.000).

conclusionIn this study population, serum calcium and magnesium levels are lower in PIH and PE than in normal pregnancy. Mineral supplementation during the antenatal period may influence significantly, the occurrence of hypertensive disorders in pregnancy.

Indexed as

AdultBlood PressureCalciumCase-Control StudiesFemaleGhanaHumansHypercalciuriaHypertension, Pregnancy-InducedHypocalcemiaMagnesiumMultivariate AnalysisNephrocalcinosisObesityOverweightPre-EclampsiaCalciumMagnesium

Identifiers

PMID25410280
PMCPMC4243325
OpenAlexW2106935959

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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.