Evidence map›Paper›PMID 34448743›Full record

ArticleThe Pediatric infectious disease journal2021

The Etiology of Pneumonia in Zambian Children: Findings From the Pneumonia Etiology Research for Child Health (PERCH) Study.

Lawrence Mwananyanda, Donald M Thea, James Chipeta, Geoffrey Kwenda, Justin M Mulindwa, Musaku Mwenechanya, Christine Prosperi, Melissa M Higdon, Meredith Haddix, Laura L Hammitt and 7 more

Open access · hybridAbstract read
In one paragraph

Article in The Pediatric infectious disease journal, 2021. 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
1.8field-weighted citation impact, top 15% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
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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

17 authors at 6 institutions in 3 countries.

Lawrence MwananyandaFrom the Department of Global Health, Boston University School of Public Health, Boston, Massachusetts.
Donald M TheaFrom the Department of Global Health, Boston University School of Public Health, Boston, Massachusetts.
James ChipetaDepartment of Paediatrics and Child Health, University of Zambia School of Medicine, Lusaka, Zambia.
Geoffrey KwendaDepartment of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia.
Justin M MulindwaDepartment of Paediatrics and Child Health, University of Zambia School of Medicine, Lusaka, Zambia.
Musaku MwenechanyaDepartment of Paediatrics and Child Health, University of Zambia School of Medicine, Lusaka, Zambia.
Christine ProsperiDepartment of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
Melissa M HigdonDepartment of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
Meredith HaddixDepartment of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
Laura L HammittDepartment of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
Daniel R FeikinDepartment of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
David R MurdochDepartment of Pathology and Biomedical Sciences, University of Otago, Christchurch, New Zealand.
Katherine L O'BrienDepartment of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
Maria Deloria KnollDepartment of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
James MwansaDepartment of Pathology and Microbiology, University Teaching Hospital, Lusaka, Zambia.
Somwe Wa SomweDepartment of Paediatrics and Child Health, University of Zambia School of Medicine, Lusaka, Zambia.
Phil SeidenbergFrom the Department of Global Health, Boston University School of Public Health, Boston, Massachusetts.
Johns Hopkins University · USUniversity of Zambia · ZMBoston University · USLusaka Apex Medical University · ZMUniversity of Otago · NZUniversity Teaching Hospital · ZM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChildhood pneumonia in developing countries is the foremost cause of morbidity and death. Fresh information on etiology is needed, considering the changing epidemiology of pneumonia in the setting of greater availability of effective vaccines, changing antibiotic use and improved access to care. We report here the Zambia site results of the Pneumonia Etiology Research for Child Health study on the etiology of pneumonia among HIV-uninfected children in Lusaka, Zambia.

methodsWe conducted a case-control study of HIV-uninfected children age 1-59 months admitted with World Health Organization-defined severe or very severe pneumonia to a large tertiary care hospital in Lusaka. History, physical examination, chest radiographs (CXRs), blood cultures and nasopharyngeal/oropharyngeal swabs were obtained and tested by polymerase chain reaction and routine microbiology for the presence of 30 bacteria and viruses. From age and seasonally matched controls, we tested blood and nasopharyngeal/oropharyngeal samples. We used the Pneumonia Etiology Research for Child Health integrated analysis to determine the individual and population etiologic fraction for individual pathogens as the cause of pneumonia.

resultsAmong the 514 HIV-uninfected case children, 208 (40.5%) had abnormal CXRs (61 of 514 children were missing CXR), 8 (3.8%) of which had positive blood cultures. The overall mortality was 16.0% (82 deaths). The etiologic fraction was highest for respiratory syncytial virus [26.1%, 95% credible interval (CrI): 17.0-37.7], Mycobacterium tuberculosis (12.8%, 95% CrI: 4.3-25.3) and human metapneumovirus (12.8%, CrI: 6.1-21.8).

conclusionsChildhood pneumonia in Zambia among HIV-uninfected children is most frequently caused by respiratory syncytial virus, M. tuberculosis and human metapneumovirus, and the mortality remains high.

Indexed as

AIDS-Related Opportunistic InfectionsBayes TheoremCase-Control StudiesChild HealthChild, PreschoolDeveloping CountriesFemaleHospitalizationHumansInfantLogistic ModelsMalePatient AcuityPneumoniaRisk FactorsZambia

Identifiers

PMID34448743
PMCPMC8448410
OpenAlexW3196243984

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.