Evidence map›Paper›PMID 40053109›Full record

ArticleJournal of gastroenterology2025

Long-term evaluation of Helicobacter pylori screening in school health checkups: an 11-year study in Japan.

Takuma Okamura, Akihiro Ito, Yugo Iwaya, Tadanobu Nagaya, Atsuhiro Hirayama, Hiroyoshi Ota, Taiji Akamatsu

Abstract read
In one paragraph

Article in Journal of gastroenterology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. AdolescentChildren (Basel, Switzerland) · 2026
    Review
  2. Article
  3. Article
  4. Vaccines · 2025
    Review
  5. Article
  6. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Takuma OkamuraDepartment of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan. tokamura@shinshu-u.ac.jp.ORCID 0000-0002-6838-4931
Akihiro ItoDepartment of Gastroenterology, Matsumoto Municipal Hospital, Matsumoto, Japan.
Yugo IwayaDepartment of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan.
Tadanobu NagayaEndoscopic Examination Center, Shinshu University Hospital, Matsumoto, Japan.
Atsuhiro HirayamaDepartment of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan.
Hiroyoshi OtaDepartment of Biomedical Laboratory Sciences, School of Health Sciences, Shinshu University School of Medicine, Matsumoto, Japan.
Taiji AkamatsuEndoscopy Center, Nagano Prefectural Shinshu Medical Center, Suzaka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe eradication of Helicobacter pylori (H. pylori) at a younger age is considered effective in preventing gastric cancer. Toward this goal, we introduced primary H. pylori screening into routine high school health screenings in 2007. The present study aimed to elucidate the clinicopathological characteristics of H. pylori-infected students and evaluate the effectiveness of H. pylori screening in high school populations.

methodsPrimary screening using a urinary anti-H. pylori antibody test was conducted on high school students from 2007 to 2017. Students who tested positive for this examination were recommended secondary screening by esophagogastroduodenoscopy (EGD), with eradication therapy for those with confirmed H. pylori infection. We analyzed data from 2007 to 2011 as the early period and from 2012 to 2017 as the late period.

resultsOver 11 years, 5178 of 5193 (99.7%) subjects received primary screening, among which 184 students (3.6%) tested positive. The primary screening-positive rate decreased significantly from 4.7% in the early period to 2.8% in the late period (p < 0.01). EGD as secondary screening in 103 students (56%) revealed nodular gastritis (83.3%) as the most common endoscopic finding. H. pylori infection was diagnosed in 90 students (87.4%). The resistance rate of H. pylori to clarithromycin was 41.1%. The initial eradication therapy success rate by treatment selection according to H. pylori susceptibility was 96.5%.

conclusionsThe introduction of H. pylori screening into school health checkups achieved high participation rates and appeared useful for identifying and treating H. pylori infection in young populations.

Indexed as

Helicobacter InfectionsHelicobacter pyloriMass ScreeningSchool Health ServicesAdolescentAnti-Bacterial AgentsAntibodies, BacterialEndoscopy, Digestive SystemFemaleGastritisHumansJapanMaleAnti-Bacterial AgentsAntibodies, BacterialAdolescentEradication therapyGastric cancerHelicobacter pyloriHigh school

Identifiers

PMID40053109
PMCPMC12095338

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.