Evidence map›Paper›PMID 16211345›Full record

ArticleJournal of gastroenterology2005

Helicobacter pylori infection increases the risk of colorectal adenoma and adenocarcinoma, especially in women.

Shunji Fujimori, Teruyuki Kishida, Tsuyoshi Kobayashi, Yoshihisa Sekita, Tsuguhiko Seo, Kazuhiro Nagata, Atsushi Tatsuguchi, Katya Gudis, Kimiyoshi Yokoi, Noritake Tanaka and 4 more

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of gastroenterology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 5 pooled it
2.5field-weighted citation impact, top 11% 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

34 citing papers in PubMed, 5 syntheses or guidelines pooled it, 80 citations in OpenAlex.

  1. Association BetweenFrontiers in medicine · 2021
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Beyond the Stomach: Exploring the Role ofExpert reviews in molecular medicine · 2026
    Review
  7. Article
  8. EClinicalMedicine · 2025
    Article
  9. Article
  10. Gastroenterology and hepatology from bed to bench · 2025
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Przeglad gastroenterologiczny · 2019
    Article
  16. Helicobacter pylori is associated with increased risk of serrated colonic polyps: Analysis of serrated polyp risk factors.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2018
    Article
  17. Article
  18. Microbiota, Inflammation and Colorectal Cancer.International journal of molecular sciences · 2017
    Review
  19. World journal of gastroenterology · 2017
    Article
  20. Gut and liver · 2016
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 1 institution in 1 country.

Shunji FujimoriThird Department of Internal Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan.
Teruyuki Kishida
Tsuyoshi Kobayashi
Yoshihisa Sekita
Tsuguhiko Seo
Kazuhiro Nagata
Atsushi Tatsuguchi
Katya Gudis
Kimiyoshi Yokoi
Noritake Tanaka
Kiyohiko Yamashita
Takashi Tajiri
Yoshiharu Ohaki
Choitsu Sakamoto
Nippon Medical School · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent reports suggest that Helicobacter pylori infection can potentially increase the risk of colorectal cancer. The purpose of this study was to assess the association between H. pylori infection and the risk of colorectal adenoma and adenocarcinoma, and to evaluate any differences on the basis of sex.

methodsThe subjects were 669 (40- to 80-year-old) patients who underwent both barium enema examination and total colonoscopy, and who were evaluated for H. pylori infection by (13)C-urea breath test, urease test, or histological diagnosis of biopsied gastric specimens. There were 142 H. pylori-negative and 527-positive patients. The odds ratios (ORs) for H. pylori-positive patients with colorectal adenoma and adenocarcinoma, and for tumor patients with either adenoma or adenocarcinoma were calculated.

resultsAmong the H. pylori-negative patients, there were 52 patients without tumor, 63 with adenoma, 27 with adenocarcinoma, and 90 with tumor. Among the H. pylori-positive patients, there were 136, 264, 127, and 391 patients respectively. Pooling all subjects, those infected with H. pylori had a significantly increased OR for adenoma, adenocarcinoma, or tumor, compared to H. pylori-free patients (OR, 1.60, 1.80, and 1.66, respectively). For female H. pylori-positive subjects, the risk of having adenocarcinoma or tumor was significantly higher than that for their H. pylori-free counterparts, while for male H. pylori-positive and -negative subjects, there was no such significant difference.

conclusionsThe results therefore suggest that, in patients aged 40-80 years, H. pylori infection increased the risk of colorectal adenoma and adenocarcinoma, with significantly higher risks for female patients.

Indexed as

AdenocarcinomaAdenomaAdultAgedAged, 80 and overBiopsyColonoscopyColorectal NeoplasmsFemaleHelicobacter InfectionsHelicobacter pyloriHumansMaleMiddle AgedRetrospective StudiesRisk Factors

Identifiers

PMID16211345
OpenAlexW2063300996

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.