Evidence map›Paper›PMID 32448889›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2021

Declines in Pneumonia Mortality Following the Introduction of Pneumococcal Conjugate Vaccines in Latin American and Caribbean Countries.

Lucia H de Oliveira, Kayoko Shioda, Maria Tereza Valenzuela, Cara B Janusz, Analía Rearte, Alyssa N Sbarra, Joshua L Warren, Cristiana M Toscano, Daniel M Weinberger, Multinational Study for PCV Impact in Mortality Study Team

Open access · hybridAbstract read
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 4 pooled it
3.6field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 4 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Article
  7. Article
  8. Fulminant Multidrug-ResistantMicroorganisms · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  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

10 authors at 5 institutions in 4 countries.

Lucia H de OliveiraComprehensive Family Immunization Unit, Family, Health Promotion, and Life Course, Pan American Health Organization, World Health Organization, Washington, District of Columbia, USA.
Kayoko ShiodaDepartment of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, USA.ORCID 0000-0002-8057-8448
Maria Tereza ValenzuelaDepartment of Public Health and Epidemiology, Universidad de Los Andes, Santiago, Chile.
Cara B JanuszComprehensive Family Immunization Unit, Family, Health Promotion, and Life Course, Pan American Health Organization, World Health Organization, Washington, District of Columbia, USA.
Analía RearteSchool of Medicine, Universidad Nacional de Mar del Plata, Mar del Plata, Province of Buenos Aires, Argentina.
Alyssa N SbarraDepartment of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, USA.
Joshua L WarrenDepartment of Biostatistics, Yale School of Public Health, New Haven, Connecticut, USA.
Cristiana M ToscanoDepartment of Collective Health, Institute of Tropical Pathology and Public Health, Federal University of Goias, Goiânia, Goiás, Brazil.
Daniel M WeinbergerDepartment of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, USA.
Multinational Study for PCV Impact in Mortality Study Team
Yale University · USWorld Health Organization Regional Office for the Americas · USNational University of Mar del Plata · ARUniversidad de Los Andes, Chile · CLUniversidade Federal de Goiás · BR

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Forecasting pneumococcal serotype frequencies to develop adult-specific vaccinesR01AI123208 · NIAID · YALE UNIVERSITY · PI WEINBERGER, DANIEL MARTIN · 2016 to 2019
$2.5M
NCATS NIH HHS UL1 TR001863NIAID NIH HHS R01 AI123208
6 · The paper itself

Abstract

backgroundPneumococcal conjugate vaccines (PCVs) are recommended for use in pediatric immunization programs worldwide. Few data are available on their effect against mortality. We present a multicountry evaluation of the population-level impact of PCVs against death due to pneumonia in children < 5 years of age.

methodsWe obtained national-level mortality data between 2000 and 2016 from 10 Latin American and Caribbean countries, using the standardized protocol. Time series models were used to evaluate the decline in all-cause pneumonia deaths during the postvaccination period while controlling for unrelated temporal trends using control causes of death.

resultsThe estimated declines in pneumonia mortality following the introduction of PCVs ranged from 11% to 35% among children aged 2-59 months in 5 countries: Colombia (24% [95% credible interval {CrI}, 3%-35%]), Ecuador (25% [95% CrI, 4%-41%]), Mexico (11% [95% CrI, 3%-18%]), Nicaragua (19% [95% CrI, 0-34%]), and Peru (35% [95% CrI, 20%-47%]). In Argentina, Brazil, and the Dominican Republic, the declines were not detected in the aggregated age group but were detected in certain age strata. In Guyana and Honduras, the estimates had large uncertainty, and no declines were detected. Across the 10 countries, most of which have low to moderate incidence of pneumonia mortality, PCVs have prevented nearly 4500 all-cause pneumonia deaths in children 2-59 months since introduction.

conclusionsAlthough the data quality was variable between countries, and the patterns varied across countries and age groups, the balance of evidence suggests that mortality due to all-cause pneumonia in children declined after PCV introduction. The impact could be greater in populations with a higher prevaccine burden of pneumonia.

Indexed as

Pneumococcal InfectionsPneumoniaPneumonia, PneumococcalArgentinaBrazilChildColombiaDominican RepublicHondurasHumansInfantLatin AmericaMexicoNicaraguaPeruPneumococcal VaccinesPneumococcal VaccinesVaccines, Conjugatechildhood mortalityLatin America and Caribbeanpneumococcal conjugate vaccinespneumoniavaccine evaluation

Identifiers

PMID32448889
PMCPMC8516507
OpenAlexW3026142628

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.