Evidence map›Paper›PMID 29550592›Full record

ArticleGastroenterology2018

Effects of Helicobacter pylori Treatment on Incidence of Gastric Cancer in Older Individuals.

Wai K Leung, Irene O L Wong, Ka Shing Cheung, Kar Fu Yeung, Esther W Chan, Angel Y S Wong, Lijia Chen, Ian C K Wong, David Y Graham

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Gastroenterology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 6 pooled it
19.9field-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

71 citing papers in PubMed, 6 syntheses or guidelines pooled it, 158 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Helicobacter pylori eradication for the prevention of gastric neoplasia.The Cochrane database of systematic reviews · 2020
    Pooled it
  7. Trial
  8. Effects ofBMJ (Clinical research ed.) · 2019
    Trial
  9. Article
  10. Efficacy of Helicobacter pylori Eradication for Gastric Cancer Prevention in Older Adults.The Korean journal of helicobacter and upper gastrointestinal research · 2026
    Article
  11. Helicobacter pylori Management in Older Adults: Current Perspectives From Japan.The Korean journal of helicobacter and upper gastrointestinal research · 2026
    Review
  12. Article
  13. Review
  14. Article
  15. Journal of the National Cancer Center · 2024
    Review
  16. The Aging Stomach: Clinical Implications ofInternational journal of molecular sciences · 2024
    Review
  17. Article
  18. Article
  19. Prevention of Gastric Cancer:The Korean journal of helicobacter and upper gastrointestinal research · 2024
    Review
  20. Review

11 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 3 institutions in 3 countries.

Wai K LeungDepartment of Medicine, University of Hong Kong, Hong Kong. Electronic address: waikleung@hku.hk.
Irene O L WongSchool of Public Health, University of Hong Kong, Hong Kong.
Ka Shing CheungDepartment of Medicine, University of Hong Kong, Hong Kong.
Kar Fu YeungSchool of Public Health, University of Hong Kong, Hong Kong.
Esther W ChanCentre of Safe Medication Practice and Research, Department of Pharmacology & Pharmacy, University of Hong Kong, Hong Kong.
Angel Y S WongCentre of Safe Medication Practice and Research, Department of Pharmacology & Pharmacy, University of Hong Kong, Hong Kong; Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom.
Lijia ChenDepartment of Medicine, University of Hong Kong, Hong Kong.
Ian C K WongCentre of Safe Medication Practice and Research, Department of Pharmacology & Pharmacy, University of Hong Kong, Hong Kong; UCL School of Pharmacy, University College London, London, United Kingdom.
David Y GrahamDepartment of Medicine, Michael DeBakey VAMC and Baylor College of Medicine, Houston, Texas.
University of Hong Kong · HKBaylor College of Medicine · USUniversity College London · GB

Funding

Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI Geoffrey A Preidis · 2001 to 2026
$28.3M
NIDDK NIH HHS P30 DK056338
6 · The paper itself

Abstract

BACKGROUND &

aimsAlthough eradication of Helicobacter pylori infection reduces the risk of gastric cancer, few data are available on its effects in older subjects. We compared the age-specific risk of gastric cancer in a large cohort of subjects who received H pylori eradication therapy vs a matched general population.

methodsWe searched the Hospital Authority database of Hong Kong to identify individuals with H pylori infection who had received a course of clarithromycin-containing eradication therapy from January 2003 through December 2012. We compared the gastric cancer incidence in this cohort with the expected incidence for the local general population by retrieving the gastric cancer incidence of the age- and sex-matched population from 2003 through 2014 (the latest available year) from the Hong Kong Cancer Registry. The primary outcome was the incidence of gastric cancer development in the cohort treated for H pylori infection vs the expected number of gastric cancer cases in the general population. Analyses were conducted by a priori age groups of less than 40 years, 40-59 years, and 60 years or older.

resultsAmong 73,237 subjects infected with H pylori who received eradication therapy, 200 (0.27%) developed gastric cancer during a median follow-up time of 7.6 years. Compared with the matched general population, the gastric cancer risk was significantly lower in subjects 60 years or older who had received H pylori treatment (standardized incidence ratio [SIR], 0.82; 95% confidence interval [CI], 0.69-0.97; P = .02) but not in younger groups. When data were stratified based on time from H pylori treatment (less than 5 years, 5-9 years, and 10 or more years), the risk of gastric cancer was significantly lower than the general population 10 or more years after eradication in the group 40-59 years old (SIR 0.32; 95% CI, 0.08-0.88; P = .04) and the group 60 years or older (SIR, 0.42; 95% CI, 0.42-0.84; P = .02) than the other age groups.

conclusionsIn an analysis of data from a public hospital database on Hong Kong, we associated treatment of H pylori infection with a lower risk of gastric cancer, particularly in older subjects, 10 or more years after treatment.

Indexed as

RegistriesAdultAgedAmoxicillinAntacidsAnti-Bacterial AgentsBismuthClarithromycinDrug Therapy, CombinationFemaleHelicobacter InfectionsHelicobacter pyloriHong KongHumansIncidenceLevofloxacinAmoxicillinAntacidsAnti-Bacterial AgentsBismuthClarithromycinLevofloxacinProton Pump InhibitorsAntibioticsBacteriaChemopreventionStomach Cancer

Identifiers

PMID29550592
OpenAlexW2793549397

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.