Evidence map›Paper›PMID 34517764›Full record

ArticleStroke2022

Temporal Profile of Pneumonia After Stroke.

Jeroen C de Jonge, Diederik van de Beek, Patrick Lyden, Marian C Brady, Philip M Bath, H Bart van der Worp

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Stroke, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
11.0field-weighted citation impact, top 1% 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.

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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

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  2. CHOSEN: A Randomized Controlled Feasibility Trial.Journal of the American Heart Association · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 3 countries.

Jeroen C de JongeDepartment of Neurology and Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, the Netherlands (J.C.d.J., H.B.v.d.W.).ORCID 0000-0002-0025-8760
Diederik van de BeekDepartment of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, the Netherlands (D.v.d.B.).
Patrick LydenDepartments of Physiology and Neuroscience and Neurology, USC Keck School of Medicine, Los Angeles, CA (P.L.).ORCID 0000-0001-6170-4042
Marian C BradyNursing, Midwifery and Allied Health Professions Research Unit, Glasgow Caledonian University, United Kingdom (M.C.B.).
Philip M BathStroke Trials Unit, Division of Clinical Neuroscience, School of Medicine, University of Nottingham, United Kingdom (P.M.B.).ORCID 0000-0003-2734-5132
H Bart van der WorpDepartment of Neurology and Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, the Netherlands (J.C.d.J., H.B.v.d.W.).ORCID 0000-0001-9891-2136
University Medical Center Utrecht · NLAmsterdam Neuroscience · NLGlasgow Caledonian University · GBKeck Hospital of USC · USUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe occurrence of pneumonia after stroke is associated with a higher risk of poor outcome or death. We assessed the temporal profile of pneumonia after stroke and its association with poor outcome at several time points to identify the most optimal period for testing pneumonia prevention strategies.

methodsWe analyzed individual patient data stored in the VISTA (Virtual International Stroke Trials Archive) from randomized acute stroke trials with an inclusion window up to 24 hours after stroke onset and assessed the occurrence of pneumonia in the first 90 days after stroke. Adjusted odds ratios and hazard ratios were calculated for the association between pneumonia and poor outcome and death by means of logistic and Cox proportional hazard regression, respectively, at different times of follow-up.

resultsOf 10 821 patients, 1017 (9.4%) had a total of 1076 pneumonias. Six hundred eighty-nine (64.0%) pneumonias occurred in the first week after stroke. The peak incidence was on the third day and the median time of onset was 4.0 days after stroke (interquartile range, 2-12). The presence of a pneumonia was associated with an increased risk of poor outcome (adjusted odds ratio, 4.8 [95% CI, 3.8-6.1]) or death (adjusted hazard ratio, 4.1 [95% CI, 3.7-4.6]). These associations were present throughout the 90 days of follow-up.

conclusionsTwo out of 3 pneumonias in the first 3 months after stroke occur in the first week, with a peak incidence on the third day. The most optimal period to assess pneumonia prevention strategies is the first 4 days after stroke. However, pneumonia occurring later was also associated with poor functional outcome or death.

Indexed as

AgedAged, 80 and overBrain IschemiaDatabases, FactualFemaleHumansMaleMiddle AgedPneumoniaProspective StudiesRetrospective StudiesStrokeTime Factorsdeathpneumoniastroke

Identifiers

PMID34517764
PMCPMC8700305
OpenAlexW3201628778

What OpenQuestion holds

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LicenceCC BY
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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.