Evidence map›Paper›PMID 28486626›Full record

ArticleJournal of Crohn's & colitis2017

Proximal Disease Extension in Patients With Limited Ulcerative Colitis: A Danish Population-based Inception Cohort.

Johan Burisch, Ryan Ungaro, Ida Vind, Michelle V Prosberg, Flemming Bendtsen, Jean-Frederic Colombel, Marianne K Vester-Andersen

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Crohn's & colitis, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Progression of Disease When Mesalamine Fails.Gastroenterology & hepatology · 2025
    Article
  8. Clinical features and current treatment approach to ulcerative proctitis.Translational gastroenterology and hepatology · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Factors Predictive of Proximal Disease Extension and Clinical Course of Patients Initially Diagnosed with Ulcerative Proctitis in an IBD Referral Center.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2022
    Article
  17. Article
  18. Article
  19. Review
  20. Observational
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

7 authors at 4 institutions in 2 countries.

Johan BurischGastrounit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Ryan UngaroSusan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine at Mount Sinai, New York, USA.
Ida VindGastrounit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Michelle V ProsbergGastrounit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Flemming BendtsenGastrounit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Jean-Frederic ColombelSusan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine at Mount Sinai, New York, USA.
Marianne K Vester-AndersenGastrounit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Copenhagen University Hospital · DKHvidovre Hospital · DKIcahn School of Medicine at Mount Sinai · USZealand University Hospital Køge · DK

Funding

MSHS Translational Science HubKL2TR001435 · NCATS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI MOSKOWITZ, ALAN J · 2015 to 2019
$3.8M
NCATS NIH HHS KL2 TR001435
6 · The paper itself

Abstract

BACKGROUND AND

aimsDisease extent in ulcerative colitis [UC] is dynamic and can progress over time. Little is known about risk factors for UC extension in the era of biologics. We investigated the risk of UC extension and subsequent risk of surgery in a Danish population-based cohort.

methodsAll incident UC cases in a strictly defined Copenhagen area between 2003 and 2004 were followed prospectively through 2011. Disease extension was defined as patients with limited UC [E1 or E2] at diagnosis having progressed from the initial extent by colonoscopy or surgery to E2 or extensive colitis [E3]. Associations between progression or colectomy and multiple covariates were analysed by Cox regression analysis.

resultsOf 300 UC patients, 220 [73%] had E1 or E2 at diagnosis. During follow-up, 50 [23%] patients with E1/E2 progressed to E3, and 22 [10%] with E1 progressed to E2. Disease extent at diagnosis was the sole predictor of extension to E3. A total of 18 [8%] patients with E1/E2 at diagnosis had a colectomy. Progression from E1/E2 to E3, female gender and a history of smoking were risk factors for colectomy.

conclusionAfter 7 years of follow-up, 33% of patients with limited UC experienced disease extension. Only extent at diagnosis was a clinical predictor for disease extension. The risk of colectomy was increased in former smokers and patients who progressed to extensive colitis. This highlights the need to prevent disease progression in patients with limited UC, and to identify new histological or molecular markers that might help stratify risks for disease progression.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolColectomyColitis, UlcerativeDenmarkDisease ProgressionFemaleHumansInfantMaleMiddle AgedProportional Hazards Modelscolectomydisease extentinception cohortulcerative colitis

Identifiers

PMID28486626
PMCPMC6279091
OpenAlexW2587202815

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.