Evidence map›Paper›PMID 32518661›Full record

ArticleBMJ open gastroenterology2020

Gut microbiome composition and risk factors in a large cross-sectional IBS cohort.

Melissa Agnello, Lauren N Carroll, Nabeel Imam, Rodolfo Pino, Christina Palmer, Ignacio Varas, Claire Greene, Maureen Hitschfeld, Sarah Gupta, Daniel E Almonacid and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open gastroenterology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
  2. Mechanisms and clinical implications of gut-brain interactions.The Journal of clinical investigation · 2026
    Review
  3. Review
  4. Review
  5. Review
  6. Cross-Cohort Gut Microbiome Signatures of Irritable Bowel Syndrome Presentation and Treatment.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Food science & nutrition · 2023
    Article
  12. Female reproductive tract-organ axes.Frontiers in immunology · 2023
    Review
  13. Article
  14. Genetics of irritable bowel syndrome: shifting gear via biobank-scale studies.Nature reviews. Gastroenterology & hepatology · 2022
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

11 authors at 1 institution in 1 country.

Melissa Agnello *Medical Affairs, uBiome, San Francisco, California, USA.
Lauren N Carroll *Medical Affairs, uBiome, San Francisco, California, USA.ORCID 0000-0003-0739-5861
Nabeel ImamMedical Affairs, uBiome, Santiago, Chile.
Rodolfo PinoMedical Affairs, uBiome, Santiago, Chile.
Christina PalmerMedical Affairs, uBiome, San Francisco, California, USA.
Ignacio VarasBioinformatics, uBiome, Santiago, Chile.
Claire GreeneMedical Affairs, uBiome, San Francisco, California, USA.
Maureen HitschfeldData Science, uBiome, Santiago, Chile.ORCID 0000-0001-7322-875X
Sarah GuptaMedical Affairs, uBiome, San Francisco, California, USA.
Daniel E AlmonacidMedical Affairs, uBiome, San Francisco, California, USA.
Michael C HoaglinMedical Affairs, uBiome, San Francisco, California, USA.ORCID 0000-0003-4643-8617
University of Bío-Bío · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Irritable bowel syndrome (IBS) is a common gastrointestinal disorder that is difficult to diagnose and treat due to its inherent heterogeneity and unclear aetiology. Although there is evidence suggesting the importance of the microbiome in IBS, this association remains poorly defined. In the current study, we aimed to characterise a large cross-sectional cohort of patients with self-reported IBS in terms of microbiome composition, demographics, and risk factors. Design: Individuals who had previously submitted a stool sample for 16S microbiome sequencing were sent a comprehensive survey regarding IBS diagnosis, demographics, health history, comorbidities, family history, and symptoms. Log ratio-transformed abundances of microbial taxa were compared between individuals reporting a diagnosis of IBS without any comorbidities and individuals reporting no health conditions. Univariable testing was followed by a multivariable logistic regression model controlling for relevant confounders. Results: Out of 6386 respondents, 1692 reported a diagnosis of IBS without comorbidities and 1124 reported no health conditions. We identified 3 phyla, 15 genera, and 19 species as significantly associated with IBS after adjustment for confounding factors. Demographic risk factors include a family history of gut disorders and reported use of antibiotics in the last year. Conclusion: The results of this study confirm important IBS risk factors in a large cohort and support a connection for microbiome compositional changes in IBS pathogenesis. The results also suggest clinical relevance in monitoring and investigating the microbiome in patients with IBS. Further, the exploratory models described here provide a foundation for future studies.

Indexed as

AdultAnti-Bacterial AgentsCase-Control StudiesClassificationCohort StudiesComorbidityCross-Sectional StudiesDysbiosisFecesFemaleGastrointestinal MicrobiomeHumansIrritable Bowel SyndromeLogistic ModelsMaleMicrobiotaAnti-Bacterial AgentsRNA, Ribosomal, 16Sgenetic testingintestinal microbiologyirritable bowel syndromemolecular biologystool markers

Identifiers

PMID32518661
PMCPMC7254124
OpenAlexW3015541454

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.