Evidence map›Paper›PMID 35734803›Full record

SynthesisJournal of gastroenterology and hepatology2022

Links between celiac disease and small intestinal bacterial overgrowth: A systematic review and meta-analysis.

Ayesha Shah, Parag Thite, Teressa Hansen, Bradley J Kendall, David S Sanders, Mark Morrison, Michael P Jones, Gerald Holtmann

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of gastroenterology and hepatology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Critical Review: The Past, Present, and Future of Small Intestinal Bacterial Overgrowth (SIBO).JGH open : an open access journal of gastroenterology and hepatology · 2026
    Review
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Refractory Celiac Disease: What the Gastroenterologist Should Know.International journal of molecular sciences · 2024
    Review
  13. Review
  14. Epidemiology of small intestinal bacterial overgrowth.World journal of gastroenterology · 2023
    Review
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

8 authors at 4 institutions in 2 countries.

Ayesha ShahFaculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
Parag ThiteFaculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
Teressa HansenFaculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
Bradley J KendallFaculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
David S SandersAcademic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.
Mark MorrisonFaculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
Michael P JonesDepartment of Psychology, Macquarie University, Sydney, New South Wales, Australia.
Gerald HoltmannFaculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.ORCID https://orcid.org/0000-0002-0206-2358
The University of Queensland · AUTranslational Research Institute · AUMacquarie University · AUSheffield Teaching Hospitals NHS Foundation Trust · GB

Funding

Centre for Research Excellence APP170993National Health and Medical Research Council APP1084544
6 · The paper itself

Abstract

BACKGROUND AND

aimSymptoms of small intestinal bacterial overgrowth (SIBO) and celiac disease (CeD) often overlap, and studies suggest a link between SIBO and CeD. We thus conducted a systematic review and meta-analysis to compare SIBO prevalence in CeD patients and controls and assessed effects of antimicrobial therapy on gastrointestinal symptoms in SIBO positive CeD patients.

methodsElectronic databases were searched until February 2022 for studies reporting SIBO prevalence in CeD. Prevalence rates, odds ratio (OR), and 95% confidence intervals (CI) of SIBO in CeD and controls were calculated.

resultsWe included 14 studies, with 742 CeD patients and 178 controls. The pooled prevalence of SIBO in CeD was 18.3% (95% CI: 11.4-28.1), with substantial heterogeneity. Including case-control studies with healthy controls, SIBO prevalence in CeD patients was significantly increased (OR 5.1, 95% CI: 2.1-12.4, P = 0.0001), with minimal heterogeneity. Utilizing breath tests, SIBO prevalence in CeD patients was 20.8% (95% CI: 11.9-33.7), almost two-fold higher compared with culture-based methods at 12.6% (95% CI: 5.1-28.0), with substantial heterogeneity in both analyses. SIBO prevalence in CeD patients nonresponsive to a gluten free diet (GFD) was not statistically higher as compared with those responsive to GFD (OR 1.5, 95% CI: 0.4-5.0, P = 0.511). Antibiotic therapy of SIBO positive CeD patients resulted in improvement in gastrointestinal symptoms in 95.6% (95% CI: 78.0-99.9) and normalization of breath tests.

conclusionsThis study suggests a link between SIBO and CeD. While SIBO could explain nonresponse to a GFD in CeD, SIBO prevalence is not statistically higher in CeD patients non-responsive to GFD. The overall quality of the evidence is low, mainly due to substantial "clinical heterogeneity" and the limited sensitivity/specificity of the available diagnostic tests.

Indexed as

Celiac DiseaseAnti-Bacterial AgentsBreath TestsCase-Control StudiesHumansIntestine, SmallPrevalenceAnti-Bacterial Agentsbacterial overgrowthbreath testsceliac diseasegluten sensitive enteropathyprevalencesmall intestinal bacterial overgrowth

Identifiers

PMID35734803
PMCPMC9795979
OpenAlexW4283383548

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.