Evidence map›Paper›PMID 20855479›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2010

Influenza vaccination, pneumococcal vaccination and risk of acute myocardial infarction: matched case-control study.

A Niroshan Siriwardena, Stella M Gwini, Carol A C Coupland

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 43 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 5 pooled it
3.8field-weighted citation impact, top 7% 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.

NCT01945268 phase4completednot on this mapstarted 2015, after this paper: background citation

A Randomized Controlled Trial of Influenza Vaccine to Prevent Adverse Vascular Events: A Pilot Study

TypeinterventionalSponsorMcMaster UniversityRan2015 to 2015Enrolled107ConditionsHeart FailureArmsinactivated trivalent influenza vaccine, Sterile saline
NCT02762851 phase4unknown statusnot on this mapstarted 2016, after this paper: background citation

A Randomized Controlled Trial of Influenza Vaccine to Prevent Adverse Vascular Events

TypeinterventionalSponsorMcMaster UniversityRan2016 to 2020Enrolled5,000ConditionsHeart Failure, InfluenzaArmsSterile saline, inactivated trivalent influenza vaccine
3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 5 syntheses or guidelines pooled it, 113 citations in OpenAlex.

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  14. Myocardial infarction and viral triggers: what do we know by now?European heart journal supplements : journal of the European Society of Cardiology · 2023
    Article
  15. Vaccines and cardiovascular outcomes: lessons learned from influenza epidemics.European heart journal supplements : journal of the European Society of Cardiology · 2023
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 1 country.

A Niroshan Siriwardena
Stella M Gwini
Carol A C Coupland
Lincolnshire Partnership NHS Foundation Trust · GBUniversity of Lincoln · GBUniversity of Nottingham · GB

Funding

Department of Health PB-PG-0706-10449
6 · The paper itself

Abstract

backgroundPrevious studies have shown an association between acute myocardial infarction and preceding respiratory infection. Contradictory evidence exists on the influence of influenza vaccination and pneumococcal vaccination in preventing cardiovascular disease. We aimed to investigate the possible association of influenza vaccination and pneumococcal vaccination with acute myocardial infarction.

methodsWe used a matched case-control design with data from the United Kingdom General Practice Research Database. Cases were patients who were at least 40 years of age at diagnosis of first acute myocardial infarction recorded from Nov.1, 2001, to May 31, 2007, and were matched for sex, general practice, age and calendar time (i.e., month corresponding to index date of acute myocardial infarction), with up to four controls each. Data were analyzed using conditional logistic regression, adjusted for vaccination target groups, cardiovascular risk factors, treatment medications and attendances at a general practice.

resultsWe included 78 706 patients, of whom 16 012 were cases and 62 694 were matched controls. Influenza vaccination had been received in the previous year by 8472 cases (52.9%) and 32 081 controls (51.2%) and was associated with a 19% reduction in the rate of acute myocardial infarction (adjusted odds ratio [OR] 0.81, 95% confidence interval [CI] 0.77-0.85). Early seasonal influenza vaccination was associated with a lower rate of acute myocardial infarction (adjusted OR 0.79, 95% CI 0.75-0.83) than vaccination after mid-November (adjusted OR 0.88, 95% CI 0.79-0.97). Pneumococcal vaccination was not associated with a reduction in the rate of acute myocardial infarction (adjusted OR 0.96, 95% CI 0.91-1.02).

interpretationInfluenza vaccination but not pneumococcal vaccination is associated with a reduced rate of first acute myocardial infarction. This association and the potential benefit of early seasonal vaccination need to be considered in future experimental studies.

Indexed as

AdultAgedAge FactorsCase-Control StudiesConfidence IntervalsFemaleHumansInfluenza VaccinesMaleMiddle AgedMyocardial InfarctionOdds RatioPneumococcal VaccinesRisk FactorsSex FactorsInfluenza VaccinesPneumococcal Vaccines

Identifiers

PMID20855479
PMCPMC2952008
OpenAlexW2115788908

What OpenQuestion holds

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Read underepoch 390

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 OpenQuestion graph.