Evidence map›Paper›PMID 26802105›Full record

ArticleJournal of the American Heart Association2016

Serum Magnesium and the Risk of Death From Coronary Heart Disease and Sudden Cardiac Death.

Brenda C T Kieboom, Maartje N Niemeijer, Maarten J G Leening, Marten E van den Berg, Oscar H Franco, Jaap W Deckers, Albert Hofman, Robert Zietse, Bruno H Stricker, Ewout J Hoorn

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 1 pooled it
12.7field-weighted citation impact, top 1% 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

55 citing papers in PubMed, 1 synthesis or guideline pooled it, 147 citations in OpenAlex.

  1. Pooled it
  2. The Effect of Magnesium Supplementation on Endothelial Function: A Randomised Cross-Over Pilot Study.International journal of environmental research and public health · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

Brenda C T KieboomDepartment of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., M.N.N., M.G.L., O.H.F., A.H., B.H.S.) Department of Internal Medicine, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., R.Z., B.H.S., E.J.H.) Inspectorate for Health Care, Utrecht, The Netherlands (B.T.K., B.H.S.).
Maartje N NiemeijerDepartment of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., M.N.N., M.G.L., O.H.F., A.H., B.H.S.).
Maarten J G LeeningDepartment of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., M.N.N., M.G.L., O.H.F., A.H., B.H.S.) Department of Cardiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (M.G.L., J.W.D.) Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (M.G.L., A.H.).
Marten E van den BergDepartment of Medical Informatics, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (M.E.B.).
Oscar H FrancoDepartment of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., M.N.N., M.G.L., O.H.F., A.H., B.H.S.).
Jaap W DeckersDepartment of Cardiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (M.G.L., J.W.D.).
Albert HofmanDepartment of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., M.N.N., M.G.L., O.H.F., A.H., B.H.S.) Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (M.G.L., A.H.).
Robert ZietseDepartment of Internal Medicine, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., R.Z., B.H.S., E.J.H.).
Bruno H StrickerDepartment of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., M.N.N., M.G.L., O.H.F., A.H., B.H.S.) Department of Internal Medicine, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., R.Z., B.H.S., E.J.H.) Inspectorate for Health Care, Utrecht, The Netherlands (B.T.K., B.H.S.).
Ewout J HoornDepartment of Internal Medicine, Erasmus MC - University Medical Center Rotterdam, Rotterdam, The Netherlands (B.T.K., R.Z., B.H.S., E.J.H.).
Erasmus MC · NLDutch Health Care Inspectorate · NLHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLow serum magnesium has been implicated in cardiovascular mortality, but results are conflicting and the pathway is unclear. We studied the association of serum magnesium with coronary heart disease (CHD) mortality and sudden cardiac death (SCD) within the prospective population-based Rotterdam Study, with adjudicated end points and long-term follow-up. METHODS AND

resultsNine-thousand eight-hundred and twenty participants (mean age 65.1 years, 56.8% female) were included with a median follow-up of 8.7 years. We used multivariable Cox proportional hazard models and found that a 0.1 mmol/L increase in serum magnesium level was associated with a lower risk for CHD mortality (hazard ratio: 0.82, 95% CI 0.70-0.96). Furthermore, we divided serum magnesium in quartiles, with the second and third quartile combined as reference group (0.81-0.88 mmol/L). Low serum magnesium (≤0.80 mmol/L) was associated with an increased risk of CHD mortality (N=431, hazard ratio: 1.36, 95% CI 1.09-1.69) and SCD (N=217, hazard ratio: 1.54, 95% CI 1.12-2.11). Low serum magnesium was associated with accelerated subclinical atherosclerosis (expressed as increased carotid intima-media thickness: +0.013 mm, 95% CI 0.005-0.020) and increased QT-interval, mainly through an effect on heart rate (RR-interval: -7.1 ms, 95% CI -13.5 to -0.8). Additional adjustments for carotid intima-media thickness and heart rate did not change the associations with CHD mortality and SCD.

conclusionsLow serum magnesium is associated with an increased risk of CHD mortality and SCD. Although low magnesium was associated with both carotid intima-media thickness and heart rate, this did not explain the relationship between serum magnesium and CHD mortality or SCD. Future studies should focus on why magnesium associates with CHD mortality and SCD and whether intervention reduces these risks.

Indexed as

AgedArrhythmias, CardiacBiomarkersCarotid Artery DiseasesCarotid Intima-Media ThicknessCause of DeathCoronary DiseaseDeath, Sudden, CardiacDown-RegulationElectrocardiographyFemaleHeart RateHumansLinear ModelsMagnesiumMagnesium DeficiencyBiomarkersMagnesiumcardiovascular diseasesdeath, suddenepidemiologymortalityrisk factors

Identifiers

PMID26802105
PMCPMC4859391
OpenAlexW2271287115

What OpenQuestion holds

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Registered trials

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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.