Evidence map›Paper›PMID 24726406›Full record

ArticleThe Lancet. Respiratory medicine2014

Effectiveness of ten-valent pneumococcal conjugate vaccine against invasive pneumococcal disease in Brazil: a matched case-control study.

Carla Magda Allan S Domingues, Jennifer R Verani, Ernesto Issac Montenegro Renoiner, Maria Cristina de Cunto Brandileone, Brendan Flannery, Lucia Helena de Oliveira, João Barberino Santos, José Cássio de Moraes, Brazilian Pneumococcal Conjugate Vaccine Effectiveness Study Group

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in The Lancet. Respiratory medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed, 5 pooled it
21.7field-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

102 citing papers in PubMed, 5 syntheses or guidelines pooled it, 223 citations in OpenAlex.

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42 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 8 institutions in 2 countries.

Carla Magda Allan S DominguesNational Immunization Program, Secretariat for Health Surveillance, Ministry of Health, Brasília, Brazil; Center for Tropical Medicine, University of Brasília, Brasília, Brazil. Electronic address: carla.domingues@saude.gov.br.
Jennifer R VeraniNational Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Ernesto Issac Montenegro RenoinerNational Immunization Program, Secretariat for Health Surveillance, Ministry of Health, Brasília, Brazil.
Maria Cristina de Cunto BrandileoneNational Reference Laboratory for Meningitis and Pneumococcal Infections, Bacteriology Center, Adolfo Lutz Institute, Secretary of Health of the State of São Paulo, São Paulo, Brazil.
Brendan FlanneryPan American Health Organization, Brasília, Brazil.
Lucia Helena de OliveiraPan American Health Organization, Washington, DC, USA.
João Barberino SantosCenter for Tropical Medicine, University of Brasília, Brasília, Brazil.
José Cássio de MoraesDepartment of Social Medicine, School of Medical Sciences of Santa Casa, São Paulo, Brazil.
Brazilian Pneumococcal Conjugate Vaccine Effectiveness Study Group
Brazilian Society of Tropical Medicine · BRCenters for Disease Control and Prevention · USFaculdade de Ciências Médicas da Santa Casa de São Paulo · BRInstituto Adolfo Lutz · BRMinistério da Saúde · BRPan American Health Organization (Brasil) · BRUniversidade de Brasília · BRWorld Health Organization Regional Office for the Americas · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

backgroundIn March 2010, Brazil introduced the ten-valent pneumococcal conjugate vaccine (PCV10), which was licensed based on non-inferiority of immunological correlates of protection compared with the seven-valent vaccine. The schedule comprised three primary doses at ages 2 months, 4 months, and 6 months, and a booster dose at age 12 months. A single catch-up dose was offered for children aged 12-23 months at the time of introduction. We assessed PCV10 effectiveness against invasive pneumococcal disease in Brazilian children.

methodsInvasive pneumococcal disease, defined as isolation of Streptococcus pneumoniae from blood, cerebrospinal fluid, or another normally sterile site, was identified in children age-eligible for at least one PCV10 dose through laboratory-based and hospital-based surveillance in ten states in Brazil from March 1, 2010, until Dec 31, 2012. We aimed to identify four age-matched and neighbourhood-matched controls for each case. We used conditional logistic regression and calculated PCV10 effectiveness as (1-adjusted matched odds ratio) × 100% for vaccine-type and vaccine-related serotypes (ie, in the same serogroup as a vaccine serotype).

findingsIn 316 cases (median age 13·2 months, range 2·6-53·1) and 1219 controls (13·3 months, 2·6-53·1), the adjusted effectiveness of an age-appropriate PCV10 schedule was 83·8% (95% CI 65·9-92·3) against vaccine serotypes, and 77·9% (41·0-91·7) against vaccine-related serotypes. Serotype-specific effectiveness was shown for the two most common vaccine serotypes-14 (87·7%, 60·8-96·1) and 6B (82·8%, 23·8-96·1)-and serotype 19A (82·2%, 10·7-96·4), a serotype related to vaccine serotype 19F. A single catch-up dose in children aged 12-23 months was effective against vaccine-type disease (68·0%, 17·6-87·6). No significant effectiveness was shown against non-vaccine serotypes for age-appropriate or catch-up schedules.

interpretationIn the routine immunisation programme in Brazil, PCV10 prevents invasive disease caused by vaccine serotypes. PCV10 might provide cross-protection against some vaccine-related serotypes.

fundingBrazilian Ministry of Health, Pan-American Health Organization, and US Centers for Disease Control and Prevention.

Indexed as

BrazilChild, PreschoolFemaleFollow-Up StudiesHumansIncidenceInfantMalePneumococcal InfectionsPneumococcal VaccinesPrevalenceRetrospective StudiesStreptococcus pneumoniaeVaccines, Conjugate10-valent pneumococcal conjugate vaccinePneumococcal VaccinesVaccines, Conjugate

Identifiers

PMID24726406
PMCPMC9003592
OpenAlexW2127699766

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.