Evidence map›Paper›PMID 20715907›Full record

SynthesisClinical infectious diseases : an official publication of the Infectious Diseases Society of America2010

Association of serotype with risk of death due to pneumococcal pneumonia: a meta-analysis.

Daniel M Weinberger, Zitta B Harboe, Elisabeth A M Sanders, Moses Ndiritu, Keith P Klugman, Simon Rückinger, Ron Dagan, Richard Adegbola, Felicity Cutts, Hope L Johnson and 3 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 166 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
166citing papers in PubMed, 2 pooled it
19.2field-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

166 citing papers in PubMed, 2 syntheses or guidelines pooled it, 350 citations in OpenAlex.

  1. Pooled it
  2. Prevalence ofHuman vaccines & immunotherapeutics · 2024
    Pooled it
  3. Article
  4. Review
  5. Change in the distribution ofFrontiers in microbiology · 2026
    Article
  6. Journal of preventive medicine and hygiene · 2026
    Article
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  9. Observational
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106 more citing papers are in PubMed but not listed here.

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

13 authors at 1 institution in 1 country.

Daniel M WeinbergerDepartment of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts, USA. dweinber@gmail.com
Zitta B Harboe
Elisabeth A M Sanders
Moses Ndiritu
Keith P Klugman
Simon Rückinger
Ron Dagan
Richard Adegbola
Felicity Cutts
Hope L Johnson
Katherine L O'Brien
J Anthony Scott
Marc Lipsitch
Harvard University · US

Funding

VACCINATION AND THE EVOLUTIONARY DYNAMICS OF PNEUMOCOCCIR01AI048935 · NIAID · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI LIPSITCH, MARC · 2001 to 2016
$8.8M
Post-PCV pneumococcal population genetics and resistanceR01AI066304 · NIAID · HARVARD PILGRIM HEALTH CARE, INC. · PI FINKELSTEIN, JONATHAN A · 2006 to 2014
$6.4M
NIAID NIH HHS R01 AI048935NIAID NIH HHS R01 AI066304PHS HHS T32 A1007535Wellcome Trust 061089Wellcome Trust 081835
6 · The paper itself

Abstract

backgroundThe 92 capsular serotypes of Streptococcus pneumoniae differ greatly in nasopharyngeal carriage prevalence, invasiveness, and disease incidence. There has been some debate, though, regarding whether serotype independently affects the outcome of invasive pneumococcal disease (IPD). Published studies have shown variable results with regard to case-fatality ratios for specific serotypes and the role of host factors in affecting these relationships. We evaluated whether risk of death due to IPD is a stable serotype-associated property across studies and then compared the pooled effect estimates with epidemiologic and biological correlates.

methodsWe performed a systematic review and meta-analysis of serotype-specific disease outcomes for patients with pneumonia and meningitis. Study-specific estimates of risk of death (risk ratio [RR]) were pooled from 9 studies that provided serotype-specific data on pneumonia and meningitis using a random-effects method with serotype 14 as the reference. Pooled RRs were compared with RRs from adults with low comorbidity scores to evaluate potential confounding by host factors.

resultsSignificant differences were found in the RR estimates among serotypes in patients with bacteremic pneumonia. Overall, serotypes 1, 7F, and 8 were associated with decreased RRs, and serotypes 3, 6A, 6B, 9N, and 19F were associated with increased RRs. Outcomes among meningitis patients did not differ significantly among serotypes. Serotypes with increased RRs had a high carriage prevalence, had low invasiveness, and were more heavily encapsulated in vitro.

conclusionsThese results suggest that IPD outcome, like other epidemiologic measures, is a stable serotype-associated property.

Indexed as

Bacterial Typing TechniquesHumansMeningitis, PneumococcalMortalityPneumonia, PneumococcalRisk AssessmentSerotypingStreptococcus pneumoniae

Identifiers

PMID20715907
PMCPMC2927802
OpenAlexW2148619574

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.