Evidence map›Paper›PMID 23475629›Full record

ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2013

Clinical outcome of IBD-associated versus sporadic colorectal cancer: a matched-pair analysis.

Bernhard W Renz, Wolfgang E Thasler, Gerhard Preissler, Tobias Heide, Philippe N Khalil, Michael Mikhailov, Karl-Walter Jauch, Martin E Kreis, Markus Rentsch, Axel Kleespies

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Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
–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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  4. Colorectal Cancer and Inflammatory Bowel Disease.Clinics in colon and rectal surgery · 2025
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  9. Colitis-Associated Colorectal Cancer Survival is Comparable to Sporadic Cases after Surgery: a Matched-Pair Analysis.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
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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

10 authors.

Bernhard W RenzDepartment of Surgery, University of Munich, Campus Grosshadern, Marchioninistrasse 15, 81377, Munich, Germany.
Wolfgang E Thasler
Gerhard Preissler
Tobias Heide
Philippe N Khalil
Michael Mikhailov
Karl-Walter Jauch
Martin E Kreis
Markus Rentsch
Axel Kleespies

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study assesses the perioperative course and long-term survival of inflammatory bowel disease (IBD)-associated vs. sporadic colorectal cancer (IBD-CRC vs. SCRC) after elimination of known confounders.

methodsBetween 1991 and 2007, n = 3,299 patients underwent surgery for CRC at our institution. Thirty-three IBD patients were identified and compared to 165 SCRC using a matched-pair analysis (1:5 scenario). As matching parameters were used: age, gender, Union Internationale Contre le Cancer (UICC) stage, site of primary lesion, and date of surgery. After univariate analysis of the perioperative course, a multivariate survival analysis (Cox) of all patients (n = 198) was performed.

resultsSignificant differences were shown for preoperative symptoms (p = 0.022), transfusion rate (p = 0.01), ileostomy construction rate (p = 0.001), total complication rate (p = 0.042), and hospital stay (15 vs. 11 days, p < 0.001). Local tumor recurrence was three times higher in IBD-CRC (p = 0.004), and the 5-year survival rate was lower (49 % vs. 67 %, p = 0.03). IBD, advanced UICC stage, and synchronous liver metastasis were identified as independent prognostic factors.

conclusionWe demonstrate for the first time survival differences between IBD-CRC and SCRC after elimination of five known confounders. This might be caused by a difference in tumor biology resulting in a higher local recurrence rate in IBD-CRC.

Indexed as

AdultAgedAged, 80 and overChi-Square DistributionColorectal NeoplasmsConfounding Factors, EpidemiologicFemaleHumansInflammatory Bowel DiseasesLength of StayMaleMiddle AgedPostoperative ComplicationsPrognosisProportional Hazards ModelsRegistries

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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.