Evidence map›Paper›PMID 28922252›Full record

ArticleInflammatory bowel diseases2017

Clinical Predictors and Natural History of Disease Extension in Patients with Ulcerative Proctitis.

Emily Walsh, Young Wha Chah, Samantha M Chin, Paul Lochhead, Vijay Yajnik, Vera Denmark, John J Garber, Hamed Khalili

Abstract readMulticenter Study
In one paragraph

Article in Inflammatory bowel diseases, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Clinical features and current treatment approach to ulcerative proctitis.Translational gastroenterology and hepatology · 2025
    Review
  5. Article
  6. Risk Factors for Incident Inflammatory Bowel Disease According to Disease Phenotype.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2022
    Article
  7. 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
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.

Emily Walsh*Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; †Division of Gastroenterology, Newton Wellesley Hospital, Newton, Massachusetts; and ‡Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
Young Wha Chah
Samantha M Chin
Paul Lochhead
Vijay Yajnik
Vera Denmark
John J Garber
Hamed Khalili

Funding

Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI Ramnik J Xavier · 1991 to 2026
$35.3M
Oral Contraceptives in the Etiopathogenesis of Crohn's DiseaseK23DK099681 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI KHALILI, HAMED · 2013 to 2017
$946k
NIDDK NIH HHS K23 DK099681NIDDK NIH HHS P30 DK043351
6 · The paper itself

Abstract

backgroundA proportion of patients with initial presentation of ulcerative proctitis (UP) progress to more extensive colitis. We sought to characterize the natural history and identify clinical predictors of extension in UP.

methodsWe performed a retrospective cohort study of participants with a new diagnosis of UP from January 2000 to December 2015. We used Cox proportional hazard modeling to identify predictors of disease extension.

resultsWe identified 169 new cases of UP with a median age of diagnosis of 40 years (range: 16-91 yr) and a median follow-up of 4.3 years (range: 3.3-15.1 yr). Fifty-three (31%) patients developed extension over the follow-up time. Compared with nonextenders, the need for immunosuppressive or biologic therapy was significantly higher among extenders (34% versus 2.6%, P < 0.001). In multivariable analyses, compared with UP cases with body mass index <25, the adjusted hazard ratios of extension were 1.75 (95% confidence interval [CI], 0.95-3.23) and 2.77 (95% CI, 1.07-7.14) among overweight and obese patients, respectively (Ptrend = 0.03). Similarly, patients with a history of appendectomy or endoscopic finding of moderate to severe disease had a higher risk of extension (adjusted hazard ratio = 2.74, 95% CI, 1.07-7.01 and 1.96, 95% CI, 1.05-3.67, respectively).

conclusionsIn a retrospective cohort study, we show that appendectomy, body mass index, and endoscopic activity at the time of diagnosis of proctitis are associated with an increased risk of extension. In addition, our data suggest that extenders are more likely to require immunosuppressive or biologic therapy.

Indexed as

Disease ProgressionAdolescentAdultAgedAged, 80 and overAppendectomyBiological TherapyBody Mass IndexColitis, UlcerativeEndoscopy, GastrointestinalFemaleFollow-Up StudiesHumansImmunosuppressive AgentsMaleMassachusettsImmunosuppressive Agents

Identifiers

PMID28922252
PMCPMC5679117

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Registered trials

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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.