Evidence map›Paper›PMID 21106914›Full record

ArticleThe American journal of clinical nutrition2011

Plasma and dietary magnesium and risk of sudden cardiac death in women.

Stephanie E Chiuve, Ethan C Korngold, James L Januzzi, Mary Lou Gantzer, Christine M Albert

Abstract read
In one paragraph

Article in The American journal of clinical nutrition, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 5 pooled it
8.6field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 5 syntheses or guidelines pooled it, 114 citations in OpenAlex.

  1. Pooled it
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  3. Pooled it
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  5. Pooled it
  6. The Acute Effect of Magnesium Supplementation on Endothelial Function: A Randomized Cross-Over Pilot Study.International journal of environmental research and public health · 2021
    Trial
  7. Article
  8. Review
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  10. The role of magnesium in cardiac arrest.Frontiers in nutrition · 2024
    Review
  11. Article
  12. Article
  13. Article
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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

5 authors at 1 institution in 2 countries.

Stephanie E ChiuveCenter for Arrhythmia Prevention, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA. schiuve@hsph.harvard.edu
Ethan C Korngold
James L Januzzi
Mary Lou Gantzer
Christine M Albert
Brigham and Women's Hospital · US

Funding

Statistical MethodsP01CA087969 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ELIASSEN, A. HEATHER, TAMIMI, RULLA M · 2000 to 2019
$77.8M
RISK FACTORS FOR CVD IN WOMENR01HL034594 · NHLBI · TULANE UNIVERSITY OF LOUISIANA · PI JoAnn Elisabeth Manson, Lu Qi · 1985 to 2026
$13.8M
PRE-DETERMINE: Biologic Markers and MRI SCD Cohort StudyR01HL091069 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI ALBERT, CHRISTINE M · 2008 to 2020
$12.9M
Genetic Determinants of Sudden Cardiac DeathR01HL068070 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI ALBERT, CHRISTINE M · 2003 to 2006
$2.3M
MODIFIABLE RISK FACTORS FOR SUDDEN DEATH IN MEN/WOMENK08HL003783 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI ALBERT, CHRISTINE M · 1998 to 2002
$362k
Role of fatty acid metabolism for the prevention of sudden cardiac deathK99HL097068 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI CHIUVE, STEPHANIE ELIZABETH · 2010 to 2011
$232k
NCI NIH HHS CA-87969NCI NIH HHS P01 CA087969NHLBI NIH HHS HL-03783NHLBI NIH HHS HL-068070NHLBI NIH HHS HL-34594NHLBI NIH HHS K08 HL003783NHLBI NIH HHS K99 HL097068NHLBI NIH HHS L30 HL094250NHLBI NIH HHS R01 HL034594NHLBI NIH HHS R01 HL068070NHLBI NIH HHS R01 HL091069
6 · The paper itself

Abstract

backgroundMagnesium has antiarrhythmic properties in cellular and experimental models; however, its relation to sudden cardiac death (SCD) risk is unclear.

objectiveWe prospectively examined the association between magnesium, as measured in diet and plasma, and risk of SCD.

designThe analysis was conducted within the Nurses' Health Study. The association for magnesium intake was examined prospectively in 88,375 women who were free of disease in 1980. Information on magnesium intake, other nutrients, and lifestyle factors was updated every 2-4 y through questionnaires, and 505 cases of sudden or arrhythmic death were documented over 26 y of follow-up. For plasma magnesium, a nested case-control analysis including 99 SCD cases and 291 controls matched for age, ethnicity, smoking, and presence of cardiovascular disease was performed.

resultsAfter multivariable adjustment for confounders and potential intermediaries, the relative risk of SCD was significantly lower in women in the highest quartile compared with those in the lowest quartile of dietary (relative risk: 0.63; 95% CI: 0.44, 0.91) and plasma (relative risk: 0.23; 95% CI: 0.09, 0.60) magnesium. The linear inverse relation with SCD was strongest for plasma magnesium (P for trend = 0.003), in which each 0.25-mg/dL (1 SD) increment in plasma magnesium was associated with a 41% (95% CI: 15%, 58%) lower risk of SCD.

conclusionsIn this prospective cohort of women, higher plasma concentrations and dietary magnesium intakes were associated with lower risks of SCD. If the observed association is causal, interventions directed at increasing dietary or plasma magnesium might lower the risk of SCD.

Indexed as

DietAdultAnti-Arrhythmia AgentsCase-Control StudiesDeath, Sudden, CardiacDiet SurveysFemaleHumansMagnesiumMiddle AgedProspective StudiesRisk FactorsSurveys and QuestionnairesAnti-Arrhythmia AgentsMagnesium

Identifiers

PMID21106914
PMCPMC3021423
OpenAlexW2113679049

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.