Evidence map›Paper›PMID 33543329›Full record

Observational studyJournal of cancer research and clinical oncology2021

Colonoscopy and polypectomy: beside age, size of polyps main factor for long-term risk of colorectal cancer in a screening population.

Kathrin Halfter, Lea Bauerfeind, Anne Schlesinger-Raab, Michael Schmidt, Gabriele Schubert-Fritschle, Dieter Hölzel, Jutta Engel

Abstract readObservational Study
In one paragraph

Observational study in Journal of cancer research and clinical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

  1. Pooled it
  2. Pooled it
  3. Endoscopic Assessment of Colorectal Polyps.Clinics in colon and rectal surgery · 2024
    Review
  4. Article
  5. Article
  6. 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.

Kathrin HalfterMunich Cancer Registry (MCR), Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University (LMU), Marchionini Str. 17, 81377, Munich, Germany. halfter@ibe.med.uni-muenchen.de.ORCID http://orcid.org/0000-0002-5974-8959
Lea BauerfeindMunich Cancer Registry (MCR), Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University (LMU), Marchionini Str. 17, 81377, Munich, Germany.
Anne Schlesinger-RaabMunich Cancer Registry (MCR), Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University (LMU), Marchionini Str. 17, 81377, Munich, Germany.
Michael SchmidtMunich Cancer Registry (MCR), Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University (LMU), Marchionini Str. 17, 81377, Munich, Germany.
Gabriele Schubert-FritschleMunich Cancer Registry (MCR), Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University (LMU), Marchionini Str. 17, 81377, Munich, Germany.
Dieter HölzelMunich Cancer Registry (MCR), Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University (LMU), Marchionini Str. 17, 81377, Munich, Germany.
Jutta EngelMunich Cancer Registry (MCR), Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University (LMU), Marchionini Str. 17, 81377, Munich, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDespite national and international guideline recommendations, few studies have been conducted to estimate the impact of colonoscopy screening on long-term colorectal cancer incidence. Aim of this study was to determine the long-term impact of a full colonoscopy with polypectomy on colorectal cancer incidence in a large screening population.

methodsIn this prospective observational cohort study, a total of 10,947 colonoscopy screening participants from within the scope of the Munich Cancer Registry were consecutively recruited from participating gastroenterology practices and their subsequent colorectal cancer incidence assessed. Predictive factors associated with colorectal cancer were also evaluated in univariate and multivariate analyses.

resultsAfter a median follow-up of 14.24 years (95% CI [14.21-14.25]), 93 colorectal cancer cases were observed. This is equivalent to a truncated age-standardized rate of 69.0 (95% CI [43.3-94.7]) for male and 43.4 (95% CI [29.4-57.5]) for female participants (≥ 50 years at colonoscopy). The ratio of this observed to the expected rate from cancer registry data showed a 67% decrease in colorectal cancer incidence in the male and 65% in the female participants (p < 0.0001). In multivariate analysis of screening patients, age at screening (p < 0.0001) was the main predictive factor for colorectal cancer. In the subgroup with positive polyp findings, age (p < 0.0001) and the polyp size (p = 0.0002) were associated with colorectal cancer.

conclusionThese results underline the significance of a full colonoscopy screening combined with polypectomy in reducing the total disease burden of colorectal cancer.

Indexed as

Adenomatous PolypsAdolescentAdultAgedAged, 80 and overColonic PolypsColonoscopyColorectal NeoplasmsEarly Detection of CancerFemaleFollow-Up StudiesGermanyHumansIncidenceMaleMiddle AgedAdenomaCancer registryColonoscopyColorectal cancerPolypsScreening

Identifiers

PMID33543329
PMCPMC8310861

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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.