Evidence map›Paper›PMID 24401722›Full record

ArticleBMJ open2014

Disease manifestations of Helicobacter pylori infection in Arctic Canada: using epidemiology to address community concerns.

Justin Cheung, Karen J Goodman, Safwat Girgis, Robert Bailey, John Morse, Richard N Fedorak, Janis Geary, Katharine Fagan-Garcia, Sander Veldhuyzen van Zanten, CANHelp Working Group

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
2.3field-weighted citation impact, top 12% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Native and Indigenous Populations and Gastric Cancer: A Worldwide Review.International journal of environmental research and public health · 2022
    Pooled it
  2. ACG Clinical Guideline: Treatment of Helicobacter pylori Infection.The American journal of gastroenterology · 2017
    Guideline
  3. Increasing our knowledge about the epidemiology ofInternational journal of circumpolar health · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Article
  9. The Prevalence ofJournal of clinical medicine research · 2020
    Article
  10. Article
  11. Article
  12. Article
  13. H. pylori-associated pathologic findings among Alaska native patients.International journal of circumpolar health · 2018
    Article
  14. Epidemiological and Clinical-Pathological Aspects ofGastroenterology research and practice · 2018
    Article
  15. Article
  16. 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 3 institutions in 1 country.

Justin CheungDivision of Gastroenterology, Royal Columbian Hospital, New Westminster, British Columbia, Canada.
Karen J Goodman
Safwat Girgis
Robert Bailey
John Morse
Richard N Fedorak
Janis Geary
Katharine Fagan-Garcia
Sander Veldhuyzen van Zanten
CANHelp Working Group
University of Alberta · CAGovernment of Northwest Territories · CARoyal Columbian Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesHelicobacter pylori infection, linked to gastric cancer, is responsible for a large worldwide disease burden. H pylori prevalence and gastric cancer rates are elevated among indigenous Arctic communities, but implementation of prevention strategies is hampered by insufficient information. Some communities in northern Canada have advocated for H pylori prevention research. As a first step, community-driven research was undertaken to describe the H pylori-associated disease burden in concerned communities.

designParticipants in this cross-sectional study completed a clinical interview and gastroscopy with gastric biopsies taken for histopathological examination in February 2008.

settingStudy procedures were carried out at the health centre in Aklavik, Northwest Territories, Canada (population ∼600).

participantsAll residents of Aklavik were invited to complete a clinical interview and gastroscopy; 194 (58% female participants; 91% Aboriginal; age range 10-80 years) completed gastroscopy and had gastric biopsies taken. PRIMARY AND SECONDARY OUTCOME MEASURES: This analysis estimates the prevalence of gastric abnormalities detected by endoscopy and histopathology, and associations of demographic and clinical variables with H pylori prevalence.

resultsAmong 194 participants with evaluable gastric biopsies, 66% were H pylori-positive on histology. Among H pylori-positive participants, prevalence was 94% for acute gastritis, 100% for chronic gastritis, 21% for gastric atrophy and 11% for intestinal metaplasia of the gastric mucosa, while chronic inflammation severity was mild in 9%, moderate in 47% and severe in 43%. In a multivariable model, H pylori prevalence was inversely associated with previous gastroscopy, previous H pylori therapy and aspirin use, and was positively associated with alcohol consumption.

conclusionsIn this population, H pylori-associated gastric histopathology shows a pattern compatible with elevated risk of gastric cancer. These findings demonstrate that local concern about health risks from H pylori is warranted and provide an example of how epidemiological research can address health priorities identified by communities.

Indexed as

Helicobacter pyloriAdolescentAdultAgedAged, 80 and overCanadaChildCross-Sectional StudiesFemaleHelicobacter InfectionsHumansIndians, North AmericanMaleMiddle AgedYoung Adult

Identifiers

PMID24401722
PMCPMC3902307
OpenAlexW2019687350

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.