Evidence map›Paper›PMID 34952850›Full record

ArticleBMJ open gastroenterology2021

Risk of a post-colonoscopy colorectal cancer in patients with type 2 diabetes: a Danish population-based cohort study.

Frederikke Schønfeldt Troelsen, Henrik Toft Sørensen, Lars Pedersen, Rune Erichsen

Open access · goldAbstract read
In one paragraph

Article in BMJ open gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 33% 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

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. 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

4 authors at 1 institution in 1 country.

Frederikke Schønfeldt TroelsenDepartment of Clinical Epidemiology, Aarhus University Hospital and Aarhus University, Aarhus, Denmark frtroe@clin.au.dk.ORCID 0000-0002-5276-5959
Henrik Toft SørensenDepartment of Clinical Epidemiology, Aarhus University Hospital and Aarhus University, Aarhus, Denmark.
Lars PedersenDepartment of Clinical Epidemiology, Aarhus University Hospital and Aarhus University, Aarhus, Denmark.
Rune ErichsenDepartment of Clinical Epidemiology, Aarhus University Hospital and Aarhus University, Aarhus, Denmark.
Aarhus University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePrevalent type 2 diabetes (T2D) is associated with an increased risk of colorectal cancer and could impair the quality of bowel preparation for colonoscopy. This may in turn increase the risk of overlooked precancerous polyps and subsequent risk of post-colonoscopy colorectal cancer (PCCRC). We investigated whether patients with T2D are at increased risk of PCCRC compared with patients without T2D.

designWe conducted a population-based cohort study of patients with T2D and without T2D undergoing colonoscopy in Denmark (1995-2015). We investigated the risk of PCCRC by calculating >6 to 36 months cumulative incidence proportions (CIPs) treating death and colectomy as competing risks. Using Cox proportional-hazards regression analyses, we also computed HRs of PCCRC, comparing patients with T2D and non-T2D. According to the World Endoscopy Organization guidelines, we calculated PCCRC 3-year rates to estimate the proportions of T2D and non-T2D CRC patients experiencing PCCRC.

resultsWe identified 29 031 patients with T2D and 333 232 patients without T2D undergoing colonoscopy. We observed 250 PCCRCs among patients with T2D and 1658 PCCRCs among patients without T2D. The >6 to 36 months CIP after a first-time colonoscopy was 0.64% (95% CI 0.55% to 0.74%) for T2D and 0.36% (95% CI 0.34% to 0.38%) for patients without T2D. The HRs of PCCRC were 1.43 (95% CI 1.21 to 1.72) after a first-time colonoscopy and 1.18 (95% CI 0.75 to 1.85) after a second-time colonoscopy. The PCCRC 3-year rate was 7.9% for patients with T2D and 7.4% for patients without T2D.

conclusionT2D may be associated with an increased HR of PCCRC.

Indexed as

Colorectal NeoplasmsDiabetes Mellitus, Type 2Cohort StudiesColonoscopyDenmarkHumansRisk Factorscolonoscopycolorectal cancerdiabetes mellitus

Identifiers

PMID34952850
PMCPMC8710863
OpenAlexW4200199011

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.