Evidence map›Paper›PMID 24006009›Full record

ArticleJournal of clinical microbiology2013

Helicobacter pylori infection in infants and toddlers in South America: concordance between [13C]urea breath test and monoclonal H. pylori stool antigen test.

Dulciene Maria Magalhães Queiroz, Mayuko Saito, Gifone Aguiar Rocha, Andreia Maria Camargos Rocha, Fabrício Freire Melo, William Checkley, Lúcia Libanez Bessa C Braga, Igor Simões Silva, Robert H Gilman, Jean E Crabtree

Open access · bronzeAbstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
4.1field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Non-invasive diagnostic tests for Helicobacter pylori infection.The Cochrane database of systematic reviews · 2018
    Pooled it
  2. Article
  3. Infection byHaematologica · 2024
    Article
  4. Review
  5. Frontiers in pediatrics · 2022
    Article
  6. Biology · 2021
    Article
  7. Accurate Detection ofEuropean journal of microbiology & immunology · 2019
    Article
  8. Prevalence ofPathogens (Basel, Switzerland) · 2019
    Article
  9. Article
  10. Review
  11. Diagnosis ofDiseases (Basel, Switzerland) · 2015
    Review
  12. Review
  13. Article
  14. Review
  15. Review
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.

Dulciene Maria Magalhães QueirozLaboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Mayuko Saito
Gifone Aguiar Rocha
Andreia Maria Camargos Rocha
Fabrício Freire Melo
William Checkley
Lúcia Libanez Bessa C Braga
Igor Simões Silva
Robert H Gilman
Jean E Crabtree
Universidade Federal de Minas Gerais · BRJohns Hopkins University · USUniversidade Federal do Ceará · BRUniversidad Peruana Cayetano Heredia · PEUniversity of Leeds · GB

Funding

Medical Research Council MR/K007467/1
6 · The paper itself

Abstract

Accurate noninvasive tests for diagnosing Helicobacter pylori infection in very young children are strongly required. We investigated the agreement between the [(13)C]urea breath test ([(13)C]UBT) and a monoclonal ELISA (HpSA) for detection of H. pylori antigen in stool. From October 2007 to July 2011, we enrolled 414 infants (123 from Brazil and 291 from Peru) of ages 6 to 30 months. Breath and stool samples were obtained at intervals of at least 3 months from Brazilian (n = 415) and Peruvian (n = 908) infants. [(13)C]UBT and stool test results concurred with each other in 1,255 (94.86%) cases (kappa coefficient = 0.90; 95% confidence interval [CI] = 0.87 to 0.92). In the H. pylori-positive group, delta-over-baseline (DOB) and optical density (OD) values were positively correlated (r = 0.62; P < 0.001). The positivity of the tests was higher (P < 0.001; odds ratio [OR] = 6.01; 95% CI = 4.50 to 8.04) in Peru (546/878; 62.2%) than in Brazil (81/377; 21.5%) and increased with increasing age in Brazil (P = 0.02), whereas in Peru it decreased with increasing age (P < 0.001). The disagreement between the test results was associated with birth in Brazil and female gender but not with age and diarrhea. Our results suggest that both [(13)C]UBT and the stool monoclonal test are reliable for diagnosing H. pylori infection in very young children, which will facilitate robust epidemiological studies in infants and toddlers.

Indexed as

Antigens, BacterialBrazilBreath TestsChild, PreschoolClinical Laboratory TechniquesEnzyme-Linked Immunosorbent AssayFecesFemaleHelicobacter InfectionsHelicobacter pyloriHumansInfantMalePeruPrevalenceUreaseAntigens, BacterialUrease

Identifiers

PMID24006009
PMCPMC3889760
OpenAlexW2152195899

What OpenQuestion holds

Textmetadata
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.