Evidence map›Paper›PMID 34036322›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2022

Pneumococcal Meningitis in Adults: A Prospective Nationwide Cohort Study Over a 20-year Period.

Diederik L H Koelman, Matthijs C Brouwer, Liora Ter Horst, Merijn W Bijlsma, Arie van der Ende, Diederik van de Beek

Open access · hybridAbstract read
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
6.6field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 68 citations in OpenAlex.

  1. Innere Medizin (Heidelberg, Germany) · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Disease Trends and Mortality From Invasive Pneumococcal Disease: A Long-Term Population-Based Study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026
    Article
  6. Article
  7. Fulminant Multidrug-ResistantMicroorganisms · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Neuronal Autoantibodies in Adults After Community-Acquired Bacterial Meningitis.Neurology(R) neuroimmunology & neuroinflammation · 2025
    Observational
  12. Article
  13. Observational
  14. Review
  15. [Community acquired bacterial meningitis in adults].Innere Medizin (Heidelberg, Germany) · 2025
    Article
  16. Frontiers in public health · 2025
    Article
  17. Article
  18. Article
  19. Review
  20. Article
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

6 authors at 2 institutions in 2 countries.

Diederik L H KoelmanAmsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, The Netherlands.
Matthijs C BrouwerAmsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, The Netherlands.
Liora Ter HorstAmsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, The Netherlands.
Merijn W BijlsmaAmsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, The Netherlands.
Arie van der EndeDepartment of Medical Microbiology and Infection Prevention, The Netherlands.
Diederik van de BeekAmsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, The Netherlands.ORCID 0000-0002-4571-044X
Amsterdam Neuroscience · NLMeningitis Now · GB

Funding

Netherlands Organization for Health Research and Development 917.17.308NWO-Vici 918.19.627
6 · The paper itself

Abstract

backgroundThe epidemiology and treatment of pneumococcal meningitis has changed with the implementation of conjugate vaccines and the introduction of adjunctive dexamethasone therapy.

methodsWe analyzed episodes of community-acquired pneumococcal meningitis in adults (≥16 years) in the Netherlands, identified by the National Reference Laboratory for Bacterial Meningitis or treating physician between October 1, 1998, and April 1, 2002, and between January 1, 2006, and July 1, 2018. We studied incidence, pneumococcal serotypes, and clinical features. Predictors for unfavorable outcome (Glasgow Outcome Scale score 1-4) were identified in a multivariable logistic regression model. Two physicians independently categorized causes of death as neurological or systemic.

resultsThere were 1816 episodes in 1783 patients. The incidence of 7- and 10-7-valent pneumococcal conjugate vaccine serotypes decreased (from 0.42 to 0.06, P = .001; from 0.12 to 0.03 episodes per 100 000 population per year, P = .014). Incidence of nonvaccine serotypes increased (from 0.45 to 0.68, P = .005). The use of adjunctive treatment with dexamethasone increased and was administered in 85% of patients in 2018. In-hospital death occurred in 363 episodes (20%) and unfavorable outcome in 772 episodes (43%). Delayed cerebral thrombosis occurred in 29 patients (2%), of whom 15 patients (52%) died. Adjunctive dexamethasone therapy was associated with favorable outcome (adjusted odds ratio 2.27, P < .001), individual pneumococcal serotypes were not.

conclusionImplementation of conjugate vaccines and adjunctive dexamethasone therapy have changed the incidence and outcome of pneumococcal meningitis in adults over the last two decades. Despite recent advances pneumococcal meningitis remains associated with a residual high rate of mortality and morbidity.

Indexed as

Meningitis, PneumococcalAdultCohort StudiesHospital MortalityHumansIncidenceInfantPneumococcal VaccinesProspective StudiesPneumococcal Vaccinesbacterial meningitisconjugate vaccinesdexamethasoneepidemiologypneumococcal disease

Identifiers

PMID34036322
PMCPMC8886910
OpenAlexW3164196706

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.