Evidence map›Paper›PMID 32017987›Full record

ArticleClinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association2020

Contribution of Surveillance Colonoscopy to Colorectal Cancer Prevention.

Paul F Pinsky, Robert E Schoen

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04889352 (Optimizing Timing of Follow-up Colonoscopy), which is not on this map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 11% 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.

NCT04889352 nacompletednot on this mapstarted 2021, after this paper: background citation

Optimizing Timing of Follow-up Colonoscopy: A Pilot Cluster Randomized Trial to Test the Utility of a Knowledge Translation Tool

TypeinterventionalSponsorUniversity of ManitobaRan2021 to 2022Enrolled29ConditionsColo-rectal Cancer, Colon Polyp, Colonic Polyp, Rectal PolypArmsAccess to colonoscopy web app
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Yield of Advanced Neoplasia at Second Post-polypectomy Surveillance Colonoscopy: A Systematic Review and Meta-analysis.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025
    Pooled it
  2. Pooled it
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  13. [Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 Revised Edition].The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi · 2022
    Review
  14. Article
  15. MicroRNA-4463 facilitates the development of colon cancer by suppression of the expression of PPP1R12B.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2022
    Article
  16. Article
  17. Cross-Talk Between mFrontiers in immunology · 2022
    Article
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  19. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Paul F PinskyDivision of Cancer Prevention, National Cancer Institute, Bethesda, Maryland.
Robert E SchoenDivision of Gastroenterology, Hepatology and Nutrition, Departments of Medicine and Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania. Electronic address: rschoen@pitt.edu.
National Cancer Institute · USUniversity of Pittsburgh · US

Funding

Refinement and Discovery of Nuclear Matrix Protein Markers for Colorectal CancerU01CA152753 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KINZLER, KENNETH W., SCHOEN, ROBERT E. · 2010 to 2021
$6.8M
NCI NIH HHS U01 CA152753
6 · The paper itself

Abstract

BACKGROUND &

aimsThe contribution of surveillance colonoscopy, as opposed to that of initial colonoscopy examination, to prevention of colorectal cancer (CRC) is uncertain. We estimated the preventive effect of surveillance colonoscopy by applying the recently developed metric of adenoma dwell time avoided needed to prevent 1 CRC case (DTA).

methodsWe followed subjects in the prostate, lung, colorectal and ovarian (PLCO) cancer screening trial who underwent colonoscopies following positive findings from sigmoidoscopies (colonoscopy cohort, n = 15,935) for CRC incidence for 10 years. The number and timing of adenomas removed during surveillance were measured in a subset (n = 3492) of patients and extrapolated to the entire cohort to estimate the total avoided adenoma dwell time. A previously determined DTA value of 612 dwell years was applied to estimate the number of CRC cases prevented by surveillance. Proportional reduction in CRC was computed as C

resultsIn the colonoscopy cohort of the PLCO, 2882 subjects had advanced adenomas (AAs), 572 had 3 or more non-advanced adenomas (NAA

conclusionsUsing the recently developed metric of DTA, we estimated that surveillance colonoscopy in the PLCO colonoscopy cohort during 10 years of follow up prevented 30% of CRC cases. Because the methodology for estimation is indirect, the true effect is uncertain.

Indexed as

AdenomaColorectal NeoplasmsColonoscopyEarly Detection of CancerHumansMaleRisk FactorsSigmoidoscopyColon CancerProgressionScreeningTumor Precursor

Identifiers

PMID32017987
PMCPMC7549191
OpenAlexW3003490862

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.