Evidence map›Paper›PMID 33594104›Full record

ArticleScientific reports2021

The Prospective Dutch Colorectal Cancer (PLCRC) cohort: real-world data facilitating research and clinical care.

Jeroen W G Derksen, Geraldine R Vink, Marloes A G Elferink, Jeanine M L Roodhart, Helena M Verkooijen, Wilhelmina M U van Grevenstein, Peter D Siersema, Anne M May, Miriam Koopman, PLCRC Study Group

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Health-related quality of life and functional outcomes of colon cancer patients in the Netherlands: A population-based study.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2026
    Observational
  5. Article
  6. Article
  7. Article
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  9. Article
  10. Mechanisms of metastatic colorectal cancer.Nature reviews. Gastroenterology & hepatology · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
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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 at 20 institutions in 2 countries.

Jeroen W G DerksenDepartment of Medical Oncology, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Geraldine R VinkDepartment of Medical Oncology, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Marloes A G ElferinkDepartment of Research, Netherlands Comprehensive Cancer Organisation (IKNL), PO Box 19079, 3501 DB, Utrecht, The Netherlands.
Jeanine M L RoodhartDepartment of Medical Oncology, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Helena M VerkooijenImaging Division, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Wilhelmina M U van GrevensteinDepartment of Surgical Oncology, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Peter D SiersemaDepartment of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Anne M MayJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Miriam KoopmanDepartment of Medical Oncology, University Medical Center Utrecht, Utrecht University, PO Box 85500, 3508 GA, Utrecht, The Netherlands. m.koopman-6@umcutrecht.nl.
PLCRC Study Group
Radboud University Nijmegen · NLUtrecht University · NLSt. Antonius Ziekenhuis · NLAmphia Ziekenhuis · NLAmsterdam University Medical Centers · NLErasmus MC · NLIkazia Ziekenhuis · NLLeiden University Medical Center · NLMaastricht University · NLMedisch Centrum Haaglanden · NLMedisch Centrum Leeuwarden · NLMedisch Spectrum Twente · NLReinier de Graaf Hospital · NLRode Kruis Ziekenhuis · NLSint Franciscus Gasthuis · NLSpaarne Ziekenhuis · NLThe Netherlands Cancer Institute · NLZuyderland Medisch Centrum · NLAlbert Schweitzer Ziekenhuis · NLAlrijne Ziekenhuis · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Real-world data (RWD) sources are important to advance clinical oncology research and evaluate treatments in daily practice. Since 2013, the Prospective Dutch Colorectal Cancer (PLCRC) cohort, linked to the Netherlands Cancer Registry, serves as an infrastructure for scientific research collecting additional patient-reported outcomes (PRO) and biospecimens. Here we report on cohort developments and investigate to what extent PLCRC reflects the "real-world". Clinical and demographic characteristics of PLCRC participants were compared with the general Dutch CRC population (n = 74,692, Dutch-ref). To study representativeness, standardized differences between PLCRC and Dutch-ref were calculated, and logistic regression models were evaluated on their ability to distinguish cohort participants from the Dutch-ref (AU-ROC 0.5 = preferred, implying participation independent of patient characteristics). Stratified analyses by stage and time-period (2013-2016 and 2017-Aug 2019) were performed to study the evolution towards RWD. In August 2019, 5744 patients were enrolled. Enrollment increased steeply, from 129 participants (1 hospital) in 2013 to 2136 (50 of 75 Dutch hospitals) in 2018. Low AU-ROC (0.65, 95% CI: 0.64-0.65) indicates limited ability to distinguish cohort participants from the Dutch-ref. Characteristics that remained imbalanced in the period 2017-Aug'19 compared with the Dutch-ref were age (65.0 years in PLCRC, 69.3 in the Dutch-ref) and tumor stage (40% stage-III in PLCRC, 30% in the Dutch-ref). PLCRC approaches to represent the Dutch CRC population and will ultimately meet the current demand for high-quality RWD. Efforts are ongoing to improve multidisciplinary recruitment which will further enhance PLCRC's representativeness and its contribution to a learning healthcare system.

Indexed as

Colorectal NeoplasmsAgedAged, 80 and overFemaleHumansMaleMiddle AgedNetherlandsProspective StudiesRegistries

Identifiers

PMID33594104
PMCPMC7887218
OpenAlexW3131184129

What OpenQuestion holds

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LicenceCC BY
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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.