Evidence map›Paper›PMID 35315156›Full record

ArticleJournal of internal medicine2022

Acetylsalicylic acid use is associated with improved survival in bacteremic pneumococcal pneumonia: A long-term nationwide study.

Kristján G Rögnvaldsson, Agnar Bjarnason, Karl Kristinsson, Hörður T Bragason, Helga Erlendsdóttir, Guðmundur Þorgeirsson, Magnús Gottfreðsson

Abstract read
In one paragraph

Article in Journal of internal medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Sepsis - it is all about the platelets.Frontiers in immunology · 2023
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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

7 authors.

Kristján G RögnvaldssonFaculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.ORCID 0000-0003-4852-8114
Agnar BjarnasonFaculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.ORCID 0000-0002-2892-3304
Karl KristinssonFaculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.
Hörður T BragasonFaculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.
Helga ErlendsdóttirFaculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.
Guðmundur ÞorgeirssonFaculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.
Magnús GottfreðssonFaculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.ORCID 0000-0003-2465-0422

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPneumonia is commonly caused by Streptococcus pneumoniae (pneumococcus) and associated with subsequent cardiovascular complications and increased mortality. Potential short-term survival benefits conferred by acetylsalicylic acid (ASA) use in pneumonia remain controversial, and long-term outcomes have not been studied.

objectivesTo evaluate the association between ASA use and survival for up to 1 year following bacteremic pneumococcal pneumonia.

methodsAll bacteremic pneumococcal episodes in Iceland from 1975 to 2019 were reviewed. The study cohort consisted of individuals at least 18 years of age with symptoms and imaging results consistent with pneumonia. Differences in survival were assessed at 30 days, 90 days and 1 year using propensity score weighting (inverse probability weighting). Splitting and stratifying on survival at 7 days was done for the 30-day survival, because of nonproportionality.

resultsIn total, 815 bacteremic pneumococcal pneumonia episodes (median age 67 years, females 48%) were identified. Cox regression using propensity score weighting on the association of ASA with survival at 30 days showed an average hazard ratio (HR) of 0.60 (95% confidence interval [CI] 0.34-1.05). A significantly improved survival was observed within 7 days (HR = 0.42, 95% CI 0.19-0.92) but not during days 7-30 (HR = 1.08, 95% CI 0.46-2.55). ASA was associated with survival at 90 days (HR = 0.53, 95% CI 0.32-0.87) and 1 year (HR = 0.48, 95% CI 0.31-0.75).

conclusionUse of ASA upon admission for bacteremic pneumococcal pneumonia is associated with significantly reduced mortality for up to 1 year after diagnosis. ASA therapy in patients with pneumonia and other infectious syndromes warrants further study.

Indexed as

BacteremiaPneumonia, PneumococcalAgedAspirinCohort StudiesFemaleHumansStreptococcus pneumoniaeAspirinaspirinpneumoniapopulation-basedStreptococcus pneumoniaesurvival

Identifiers

PMID35315156
PMCPMC9543431

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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.