Evidence map›Paper›PMID 18838452›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2008

Pneumococcal vaccination and risk of myocardial infarction.

François Lamontagne, Marie-Pierre Garant, Jean-Christophe Carvalho, Luc Lanthier, Marek Smieja, Danielle Pilon

Abstract readComparative Study
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Vaccines for preventing pneumococcal infection in adults.The Cochrane database of systematic reviews · 2013
    Pooled it
  3. Trial
  4. Article
  5. Observational
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. [Pneumonia in old age].Der Pneumologe · 2021
    Review
  14. Infection and atherosclerosis: TLR-dependent pathways.Cellular and molecular life sciences : CMLS · 2020
    Review
  15. Article
  16. Review
  17. Vaccine against arteriosclerosis: an update.Therapeutic advances in vaccines · 2017
    Review
  18. Review
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

François LamontagneDepartment of Medicine, Université de Sherbrooke, Sherbrooke, Que.
Marie-Pierre Garant
Jean-Christophe Carvalho
Luc Lanthier
Marek Smieja
Danielle Pilon

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBased on promising results from laboratory studies, we hypothesized that pneumococcal vaccination would protect patients from myocardial infarction.

methodsWe conducted a hospital-based case-control study that included patients considered to be at risk of myocardial infarction. We used health databases to obtain hospital diagnoses and vaccination status. We compared patients who had been admitted for treatment of myocardial infarction with patients admitted to a surgical department in the same hospital for a reason other than myocardial infarction between 1997 and 2003.

resultsWe found a total of 43 209 patients who were at risk; of these, we matched 999 cases and 3996 controls according to age, sex and year of hospital admission. Cases were less likely than controls to have been vaccinated (adjusted odds ratio [OR] 0.53, 95% confidence interval [CI] 0.40-0.70). This putative protective role of the vaccine was not observed for patients who had received the vaccine up to 1 year before myocardial infarction (adjusted OR 0.85, 95% CI 0.54-1.33). In contrast, if vaccination had occurred 2 years or more before the hospital admission, the association was stronger (adjusted OR 0.33, 95% CI 0.20-0.46).

interpretationPneumococcal vaccination was associated with a decrease of more than 50% in the rate myocardial infarction 2 years after exposure. If confirmed, this association should generate interest in exploring the putative mechanisms and may offer another reason to promote pneumococcal vaccination.

Indexed as

AgedAge DistributionCase-Control StudiesConfidence IntervalsFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedMyocardial InfarctionOdds RatioPneumococcal VaccinesPneumonia, PneumococcalProbabilityReference ValuesPneumococcal Vaccines

Identifiers

PMID18838452
PMCPMC2553874

What OpenQuestion holds

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Registered trials

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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.