IBD Evidence

Evidence map

Inflammatory bowel disease diagnosis: what the evidence base looks like

12 publications, 0 of them trials and 12 syntheses. This page describes the shape of that literature rather than summarising its conclusions.

Updated 4 min read 12 citations

Made-up bed in a three-person internal medicine ward room
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What the evidence on inflammatory bowel disease diagnosis is made of Of 12 publications on this topic, the breakdown by study type: 12 meta-analysis. 12meta-analysis (12)
12 publications, by study type. Volume is not strength — the same count can be a settled question or a pile of commentary, and which one it is depends almost entirely on this breakdown. Harvested from PubMed and Crossref; publication type as recorded by the source.

What this literature is made of

The synthesis is ahead of the primary literature here — reviews and meta-analyses drawing on a modest number of underlying studies. Treat confident conclusions with the caution the sample size deserves.

The distinction that matters most is between synthesis and primary research. A meta-analysis pools trials and is the closest thing to a settled answer a field produces. A narrative review is one group's reading of the same material and can be selective without being dishonest. Counting them together, which most citation counts do, obscures exactly the thing you want to know.

When the inflammatory bowel disease diagnosis literature was published Publication years for the 12 papers on this topic, grouped into bands from before 2015 through to 2023 onwards. 2023 onwards8 papers2015-20193 papers2020-20221 papers
Still active. The most recent paper here is from 2025, so this is a field where an answer written today may not hold for long. Publication years as recorded by PubMed and Crossref.

How this page is built

Everything above is computed from the citations this site harvested from PubMed and Crossref, not written by hand. When the weekly harvest finds a new paper on this topic, these counts change and the characterisation changes with them. That is the point: a hand-written claim about how strong an evidence base is starts decaying the day it is written.

Publication type is taken as the source records it. That is imperfect — journals label inconsistently, and a paper indexed as a "review" may be a systematic one — so treat the bands as approximate. They are accurate enough to distinguish a trial literature from a commentary literature, which is the distinction that matters.

Set of blank 75 by 25 millimetre glass slides for light microscopy
Zephyris · CC BY-SA 3.0 · Wikimedia Commons

The strongest work on this topic

Ordered by study design first, then recency. The full set is listed in the references below.

  1. ACG Clinical Guideline Update: Ulcerative Colitis in Adults — Rubin DT, Ananthakrishnan AN, Siegel CA et al., 2025, clinical guideline
  2. ACG Clinical Guideline: Management of Crohn's Disease in Adults — Lichtenstein GR, Loftus EV, Afzali A et al., 2025, clinical guideline
  3. Management of paediatric ulcerative colitis, part 2: Acute severe colitis-An updated evidence-based consensus guideline from the European Society of Paediatric Gastroenterology, Hepatology and Nutrition and the European Crohn's and Colitis Organization — Assa A, Aloi M, Van Biervliet S et al., 2025, clinical guideline
  4. Management of paediatric ulcerative colitis, part 1: Ambulatory care-An updated evidence-based consensus guideline from the European Society of Paediatric Gastroenterology, Hepatology and Nutrition and the European Crohn's and Colitis Organisation — Wine E, Aloi M, Van Biervliet S et al., 2025, clinical guideline
  5. AGA Living Clinical Practice Guideline on Pharmacological Management of Moderate-to-Severe Ulcerative Colitis — Singh S, Loftus EV Jr, Limketkai BN et al., 2024, clinical guideline
  6. AGA Clinical Practice Update on Diet and Nutritional Therapies in Patients With Inflammatory Bowel Disease: Expert Review — Hashash JG, Elkins J, Lewis JD et al., 2024, clinical guideline
  7. ECCO Guidelines on Therapeutics in Crohn's Disease: Surgical Treatment — Adamina M, Minozzi S, Warusavitarne J et al., 2024, clinical guideline
  8. AGA Clinical Practice Guideline on the Management of Pouchitis and Inflammatory Pouch Disorders — Barnes EL, Agrawal M, Syal G et al., 2024, clinical guideline
  9. ESPEN guideline: Clinical nutrition in inflammatory bowel disease — Bischoff SC, Escher J, Hébuterne X et al., 2022, clinical guideline
  10. ACG Clinical Guideline: Ulcerative Colitis in Adults — Rubin DT, Ananthakrishnan AN, Siegel CA et al., 2019, clinical guideline
How much research is there on inflammatory bowel disease diagnosis?
12 publications are indexed here, of which 0 are trials and 12 are syntheses.
Does more research mean a stronger conclusion?
No. Composition matters more than volume — five randomised trials support a claim far better than fifty commentaries, and citation counts do not distinguish between them.
How current is this?
The most recent paper indexed here is from 2025. The set is refreshed weekly from PubMed and Crossref.
Why does this page not tell me the answer?
Because summarising a literature into a conclusion requires reading it, and doing that automatically is how confident nonsense gets published. This page tells you how much weight a conclusion could bear; the articles on this site do the interpreting.

References

Every citation below links to the original peer-reviewed record on PubMed or via DOI. Nothing here is a substitute for medical advice.

  1. Management of paediatric ulcerative colitis, part 2: Acute severe colitis-An updated evidence-based consensus guideline from the European Society of Paediatric Gastroenterology, Hepatology and Nutrition and the European Crohn's and Colitis Organization Assa A, Aloi M, Van Biervliet S, et al. · Journal of pediatric gastroenterology and nutrition · 2025 · Clinical guideline DOIPubMed 40528309
  2. Management of paediatric ulcerative colitis, part 1: Ambulatory care-An updated evidence-based consensus guideline from the European Society of Paediatric Gastroenterology, Hepatology and Nutrition and the European Crohn's and Colitis Organisation Wine E, Aloi M, Van Biervliet S, et al. · Journal of pediatric gastroenterology and nutrition · 2025 · Clinical guideline DOIPubMed 40677018Full text
  3. ACG Clinical Guideline Update: Ulcerative Colitis in Adults Rubin DT, Ananthakrishnan AN, Siegel CA, et al. · The American journal of gastroenterology · 2025 · Clinical guideline DOIPubMed 40701556
  4. ACG Clinical Guideline: Management of Crohn's Disease in Adults Lichtenstein GR, Loftus EV, Afzali A, et al. · The American journal of gastroenterology · 2025 · Clinical guideline DOIPubMed 40701562
  5. AGA Clinical Practice Guideline on the Management of Pouchitis and Inflammatory Pouch Disorders Barnes EL, Agrawal M, Syal G, et al. · Gastroenterology · 2024 · Clinical guideline DOIPubMed 38128971Full text
  6. AGA Clinical Practice Update on Diet and Nutritional Therapies in Patients With Inflammatory Bowel Disease: Expert Review Hashash JG, Elkins J, Lewis JD, et al. · Gastroenterology · 2024 · Clinical guideline DOIPubMed 38276922
  7. AGA Living Clinical Practice Guideline on Pharmacological Management of Moderate-to-Severe Ulcerative Colitis Singh S, Loftus EV Jr, Limketkai BN, et al. · Gastroenterology · 2024 · Clinical guideline DOIPubMed 39572132Full text
  8. ECCO Guidelines on Therapeutics in Crohn's Disease: Surgical Treatment Adamina M, Minozzi S, Warusavitarne J, et al. · Journal of Crohn's & colitis · 2024 · Clinical guideline DOIPubMed 38878002
  9. [ESPEN guideline: Clinical nutrition in inflammatory bowel disease] Bischoff SC, Escher J, Hébuterne X, et al. · Nutricion hospitalaria · 2022 · Clinical guideline DOIPubMed 35014851
  10. ACG Clinical Guideline: Ulcerative Colitis in Adults Rubin DT, Ananthakrishnan AN, Siegel CA, et al. · The American journal of gastroenterology · 2019 · Clinical guideline DOIPubMed 30840605
  11. ACG Clinical Guideline: Management of Crohn's Disease in Adults Lichtenstein GR, Loftus EV, Isaacs KL, et al. · The American journal of gastroenterology · 2018 · Clinical guideline DOIPubMed 29610508
  12. Management of Paediatric Ulcerative Colitis, Part 1: Ambulatory Care-An Evidence-based Guideline From European Crohn's and Colitis Organization and European Society of Paediatric Gastroenterology, Hepatology and Nutrition Turner D, Ruemmele FM, Orlanski-Meyer E, et al. · Journal of pediatric gastroenterology and nutrition · 2018 · Clinical guideline DOIPubMed 30044357