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Record W1637370045 · doi:10.15537/1658-3175.2703

The role of vitamin E in the prevention of coronary events and stroke. Meta-analysis of randomized controlled trials

2004· article· en· W1637370045 on OpenAlexaff
Abdullah Alkhenizan, Mohammed Al‐Omran

Bibliographic record

VenueSaudi Medical Journal · 2004
Typearticle
Languageen
FieldMedicine
TopicAntioxidant Activity and Oxidative Stress
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsMedicineMeta-analysisRandomized controlled trialMyocardial infarctionStroke (engine)VitaminInternal medicineInclusion and exclusion criteriaIncidence (geometry)DiseaseCoronary artery diseaseSurgeryPathology

Abstract

fetched live from OpenAlex

Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in the world. Vitamin E as an anti-oxidant vitamin, was suggested to have a role in the prevention of CVD. We did a meta-analysis, using the Cochrane Group Methodology, of all available randomized controlled trials (RCTs) to evaluate the role of vitamin E in the prevention of CVD. Nine studies met inclusion criteria, including 80,645 participants. Vitamin E supplementation was not associated with a reduction in total mortality or total CVD mortality, but it was associated with a small statistically significant reduction in non-fatal myocardial infarction in patients with pre-existing coronary artery disease. Prophylactic use of vitamin E in doses ranging between 50-800 IU was not associated with any increase in the incidence of serious side effects.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.027
metaresearch head score (Gemma)0.065
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Meta-analysis · Consensus signal: Meta-analysis
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.027
Threshold uncertainty score0.143

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0270.065
Meta-epidemiology (narrow)0.0030.002
Meta-epidemiology (broad)0.0180.040
Bibliometrics0.0060.005
Science and technology studies0.0010.001
Scholarly communication0.0030.002
Open science0.0020.001
Research integrity0.0030.003
Insufficient payload (model declined to judge)0.0020.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.041
GPT teacher head0.348
Teacher spread0.307 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designMeta-analysis
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations15
Published2004
Admission routes1
Has abstractyes

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