Evidence map›Paper›PMID 24103380›Full record

Trial reportBMC medicine2013

Dietary intake of n-3 long-chain polyunsaturated fatty acids and risk of myocardial infarction in coronary artery disease patients with or without diabetes mellitus: a prospective cohort study.

Elin Strand, Eva R Pedersen, Gard F T Svingen, Hall Schartum-Hansen, Eirik W Rebnord, Bodil Bjørndal, Reinhard Seifert, Pavol Bohov, Klaus Meyer, J Kalervo Hiltunen and 4 more

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00354081 (A Randomised Double Blind Study of the Effects of Homocysteine Lowering Therapy on Mortality and Cardiac Events in Patients Undergoing Coronary Angiography), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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.

NCT00354081 phase3completednot on this map

A Randomised Double Blind Study of the Effects of Homocysteine Lowering Therapy on Mortality and Cardiac Events in Patients Undergoing Coronary Angiography

TypeinterventionalSponsorHaukeland University HospitalRan1999 to 2008Enrolled3,096ConditionsCoronary Artery Disease, Myocardial Infarction, Cerebrovascular StrokeArmsfolic acid, vitamin B12 (cyanocobalamin), vitamin B6 (pyridoxine), folic acid, vitamin B12 (cyanocobalamin), vitamin B6 (pyridoxine), placebo
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

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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

14 authors at 5 institutions in 2 countries.

Elin StrandDepartment of Clinical Science, University of Bergen, 5021 Bergen, Norway. Elin.Strand@med.uib.no.
Eva R Pedersen
Gard F T Svingen
Hall Schartum-Hansen
Eirik W Rebnord
Bodil Bjørndal
Reinhard Seifert
Pavol Bohov
Klaus Meyer
J Kalervo Hiltunen
Jan E Nordrehaug
Dennis W T Nilsen
Rolf K Berge
Ottar Nygård
University of Bergen · NOHaukeland University Hospital · NOBevital (Norway) · NOUniversity of Oulu · FIWestern Norway University of Applied Sciences · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA beneficial effect of a high n-3 long-chain polyunsaturated fatty acid (LCPUFA) intake has been observed in heart failure patients, who are frequently insulin resistant. We investigated the potential influence of impaired glucose metabolism on the relation between dietary intake of n-3 LCPUFAs and risk of acute myocardial infarction (AMI) in patients with coronary artery disease.

methodsThis prospective cohort study was based on the Western Norway B-Vitamin Intervention Trial and included 2,378 patients with coronary artery disease with available baseline glycosylated hemoglobin (HbA1c) and dietary data. Patients were sub-grouped as having no diabetes (HbA1c <5.7%), pre-diabetes (HbA1c ≥5.7%), or diabetes (previous diabetes, fasting baseline serum glucose ≥7.0, or non-fasting glucose ≥11.1 mmol/L). AMI risk was evaluated by Cox regression (age and sex adjusted), comparing the upper versus lower tertile of daily dietary n-3 LCPUFA intake.

resultsThe participants (80% males) had a mean age of 62 and follow-up of 4.8 years. A high n-3 LCPUFA intake was associated with reduced risk of AMI (hazard ratio 0.38, 95%CI 0.18, 0.80) in diabetes patients (median HbA1c = 7.2%), whereas no association was observed in pre-diabetes patients. In patients without diabetes a high intake tended to be associated with an increased risk (hazard ratio1.45, 95%CI 0.84, 2.53), which was significant for fatal AMI (hazard ratio 4.79, 95%CI 1.05, 21.90) and associated with lower HbA1c (mean ± standard deviation 4.55 ±0.68 versus 4.92 ±0.60, P = 0.02). No such differences in HbA1c were observed in those with pre-diabetes or diabetes.

conclusionsA high intake of n-3 LCPUFAs was associated with a reduced risk of AMI, independent of HbA1c, in diabetic patients, but with an increased risk of fatal AMI and lower HbA1c among patients without impaired glucose metabolism. Further studies should investigate whether patients with diabetes may benefit from having a high intake of n-3 LCPUFAs and whether patients with normal glucose tolerance should be careful with a very high intake of these fatty acids.

trial registrationThis trial is registered at clinicaltrials.gov as NCT00354081.

Indexed as

AgedCohort StudiesCoronary Artery DiseaseDiabetes MellitusFatty Acids, Omega-3FemaleFish OilsFolic AcidHumansKaplan-Meier EstimateMaleMiddle AgedMyocardial InfarctionNorwayProspective StudiesRisk FactorsFatty Acids, Omega-3Fish OilsFolic Acid

Identifiers

PMID24103380
PMCPMC3853070
OpenAlexW1970849444

What Socratic holds

Textmetadata
LicenceCC BY
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Registered trials

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 Socratic graph.