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Peptic ulcer

64 people with peptic ulcer, in 1 study in China. It didn’t have 10 or more healthy people to compare with.

Not yet compared in a study with healthy people. We compare a condition only with healthy people from the same study, so labs, countries and methods match. This page fills in when such a study arrives.

Where these numbers come from

Studies
Only GMrepo projects that had people with the condition and healthy people, 10 or more of each. Numbers come from those studies, never from pooling.
How common
The share of people whose sample has any of it, in the people with the condition and in the healthy people of those same studies. Tested within studies (Cochran–Mantel–Haenszel, corrected for testing many microbes); a difference counts when it is clear and meaningful (Cohen’s h of 0.2 or more).
Strength word
Counted by code from how many studies point the same way: Seen again and again (3 or more, none clearly the other way), Seen more than once (2, the majority), Seen once (1, listed last). Where studies disagree, a row isn’t listed.
Each study
Tap a row for every study’s own numbers, and for how much carriers have.
Analysis
Our analysis of GMrepo data. GMrepo on Data sources · Read the rules

Also compared · 0 genera

Compared within studies that had both, but not listed above.

None match.
PubMed · human studies and reviews first

Recent research

All research on it
  1. BMC microbiology · 2025
    Comparative gastric microbiota profiles in non-ulcer dyspepsia and peptic ulcer patients.
    PubMed ↗
  2. Randomized trial Clinical pediatrics · 2024
    Treatment Effects of Bifidobacterium Quadruple Viable Tablets Combined With Quadruple Therapy on Helicobacter Pylori-Infected Peptic Ulcer in Children.
    PubMed ↗
  3. Frontiers in cellular and infection microbiology · 2023
    Causal effect of gut microbiota on Gastroduodenal ulcer: a two-sample Mendelian randomization study.
    PubMed ↗
  4. Meta-analysis Frontiers in immunology · 2023
    Genome-wide Mendelian randomization identifies putatively causal gut microbiota for multiple peptic ulcer diseases.
    PubMed ↗
  5. Frontiers in immunology · 2023
    Integrating microbiome and metabolome revealed microbe-metabolism interactions in the stomach of patients with different severity of peptic ulcer disease.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 10 linked papers, last 10 years