Evidence map›Paper›PMID 16483364›Full record

ArticleBMC gastroenterology2006

CagA-positive Helicobacter pylori infection is not associated with decreased risk of Barrett's esophagus in a population with high H. pylori infection rate.

Angel Ferrández, Rafael Benito, Juan Arenas, María Asunción García-González, Federico Sopeña, Javier Alcedo, Javier Ortego, Ricardo Sainz, Angel Lanas

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC gastroenterology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
3.6field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Effects and mechanisms ofWorld journal of gastroenterology · 2024
    Review
  6. Association of Barrett's esophagus withTherapeutic advances in chronic disease · 2022
    Article
  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

9 authors at 2 institutions in 1 country.

Angel FerrándezGastrointestinal Oncology Unit, Service of Digestive Diseases, Hospital Clínico Lozano Blesa, Zaragoza, Spain. aferrandeza@hotmail.com
Rafael Benito
Juan Arenas
María Asunción García-González
Federico Sopeña
Javier Alcedo
Javier Ortego
Ricardo Sainz
Angel Lanas
Hospital Clínico Universitario Lozano Blesa · ESUniversidad de Zaragoza · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

aimThe role that H. pylori infection plays in the development of and Barrett's esophagus (BE) is uncertain. We tested the hypothesis that infection with cagA+ Helicobacter pylori strains protects against the development of BE.

methodsWe studied 104 consecutive patients, residents in an area with a high prevalence of H. pylori infection, with BE and 213 sex- and age-matched controls. H. pylori infection and CagA antibody status were determined by western blot serology.

resultsH. pylori prevalence was higher in patients with BE than in controls (87.5% vs. 74.6%; OR. 2.3; 95% CI: 1.23-4.59). Increasing age was associated with a higher prevalence of H. pylori (p < 0.05). The prevalence of CagA+ H. pylori serology was similar in patients with BE and controls (64.4% vs. 54.5%; NS). Type I H. pylori infection (CagA+ and VacA+) was similar in patients with BE and controls (44.2% vs. 41.3%; NS). Logistic regression analysis identified alcohol (O.R. 7.09; 95% CI 2.23-22.51), and H. pylori infection (OR: 2.41; 95%CI: 1.20-4.84) but not CagA+ serology as independent factors.

conclusionNeither H. pylori infection nor H. pylori infection by CagA+ strains reduce the risk of BE in a population with high prevalence of H. pylori infection.

Indexed as

Helicobacter pyloriAdultAgedAge FactorsAlcohol DrinkingAntigens, BacterialBacterial ProteinsBarrett EsophagusBlotting, WesternEndoscopyFemaleHelicobacter InfectionsHumansLogistic ModelsMaleMiddle AgedAntigens, BacterialBacterial ProteinscagA protein, Helicobacter pylori

Identifiers

PMID16483364
PMCPMC1388227
OpenAlexW1492385276

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.