Evidence map›Paper›PMID 21235492›Full record

SynthesisCurrent aging science2011

Vitamin E and all-cause mortality: a meta-analysis.

Erin L Abner, Frederick A Schmitt, Marta S Mendiondo, Jennifer L Marcum, Richard J Kryscio

Abstract readMeta-AnalysisReview
In one paragraph

Synthesis in Current aging science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 5 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

75 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Treatment of restless legs syndrome and periodic limb movement disorder: an American Academy of Sleep Medicine systematic review, meta-analysis, and GRADE assessment.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
    Pooled it
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  12. Review
  13. Article
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  18. Scientific opinion on the tolerable upper intake level for vitamin E.EFSA journal. European Food Safety Authority · 2024
    Article
  19. Review
  20. Review

15 more citing papers are in PubMed but not listed here.

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.

Erin L AbnerSanders-Brown Center on Aging, University of Kentucky, KY 40536, USA. elabne0@email.uky.edu
Frederick A Schmitt
Marta S Mendiondo
Jennifer L Marcum
Richard J Kryscio

Funding

University of Kentucky Alzheimer's Disease Core Center - Biomarker CoreP30AG028383 · NIA · UNIVERSITY OF KENTUCKY · PI SCHMITT, FREDERICK · 2006 to 2020
$23.3M
Prevention of Alzheimer's Diseae by Vitamin E and SeleniumR01AG019241 · NIA · UNIVERSITY OF KENTUCKY · PI SCHMITT, FREDERICK · 2001 to 2012
$12.1M
NIA NIH HHS 2R01AG019241NIA NIH HHS 5P30AG028383NIA NIH HHS P30 AG028383NIA NIH HHS R01 AG019241
6 · The paper itself

Abstract

The current analysis reexamines the relationship between supplemental vitamin E and all-cause mortality. All randomized, controlled trials testing the treatment effect of vitamin E supplementation in adults for at least one year were sought. MEDLINE, the Cochrane Library, and Biological Abstracts databases were searched using the terms "vitamin E," "alpha-tocopherol," "antioxidants," "clinical trial," and "controlled trial" for studies published through April 2010; results were limited to English, German, or Spanish language articles. Studies were also obtained through reference mining. All randomized controlled trials using vitamin E, with a supplementation period of at least one year, to prevent or treat disease in adults were identified and abstracted independently by two raters. Mortality data from trials with a supplementation period of at least one year were pooled. The selected trials (n = 57) were published between 1988 and 2009. Sample sizes range from 28 to 39,876 (median = 423), yielding 246,371 subjects and 29,295 all-cause deaths. Duration of supplementation for the 57 trials range from one to 10.1 years (median = 2.6 years). A random effects meta-analysis produce an overall risk ratio of 1.00 (95% confidence interval: 0.98, 1.02); additional analyses suggest no relationship between dose and risk of mortality. Based on the present meta-analysis, supplementation with vitamin E appears to have no effect on all-cause mortality at doses up to 5,500 IU/d.

Indexed as

Dietary SupplementsAntioxidantsCause of DeathHumansLongevityRisk AssessmentRisk FactorsTime FactorsTreatment OutcomeVitamin EAntioxidantsVitamin E

Identifiers

PMID21235492
PMCPMC4030744

What OpenQuestion holds

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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.