Evidence map›Paper›PMID 33492399›Full record

ArticleJournal of the National Cancer Institute2021

Trends in the Incidence of Young-Onset Colorectal Cancer With a Focus on Years Approaching Screening Age: A Population-Based Longitudinal Study.

Alyssa Howren, Eric C Sayre, Jonathan M Loree, Sharlene Gill, Carl J Brown, Manoj J Raval, Ameer Farooq, Mary A De Vera

Abstract read
In one paragraph

Article in Journal of the National Cancer Institute, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 5 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

24 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Review
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  10. Colorectal cancer early screening: Dilemmas and solutions.World journal of gastroenterology · 2025
    Article
  11. Review
  12. Digestive cancers: mechanisms, therapeutics and management.Signal transduction and targeted therapy · 2025
    Review
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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

8 authors.

Alyssa HowrenFaculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0002-9901-6947
Eric C SayreArthritis Research Canada, Richmond, BC, Canada.ORCID 0000-0002-4526-278X
Jonathan M LoreeDepartment of Medicine, Division of Medical Oncology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0001-8189-2132
Sharlene GillDepartment of Medicine, Division of Medical Oncology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Carl J BrownDepartment of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Manoj J RavalDepartment of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0001-9628-747X
Ameer FarooqSt. Paul's Hospital, Vancouver, BC, Canada.
Mary A De VeraFaculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.

Funding

CIHR
6 · The paper itself

Abstract

backgroundWith recent evidence for the increasing risk of young-onset colorectal cancer (yCRC), we had the objective to evaluate the incidence of yCRC in 1-year age increments, particularly focusing around the screening age of 50 years.

methodsWe conducted a longitudinal study using linked administrative health databases in British Columbia, Canada, including a provincial cancer registry, inpatient and outpatient visits, and vital statistics from January 1, 1986, to December 31, 2016. We calculated incidence rates per 100 000 at every age from 20 to 60 years and estimated annual percent change in incidence (APCi) of yCRC using joinpoint regression analysis.

resultsWe identified 3614 individuals with yCRC (49.9% women). The incidence of CRC steadily increased from 20 to 60 years, with a marked increase from 49 to 50 years (incidence rate ratio = 1.19, 95% confidence interval [CI] = 1.04 to 1.34). Furthermore, there was a trend of increased incidence of yCRC among women (APCi = 0.79%, 95% CI = 0.22% to 1.36%) and men (APCi = 2.17%, 95% CI = 1.59% to 2.76%). Analyses stratified by age yielded APCis of 2.49% (95% CI = 1.36% to 3.63%) and 0.12% (95% CI = -0.54% to 0.79%) for women aged 30-39 years and 40-49 years, respectively, and 2.97% (95% CI = 1.65% to 4.31%) and 1.86% (95% CI = 1.19% to 2.53%) for men.

conclusionsOur findings indicate a steady increase over 1-year age increments in the risk of yCRC during the years approaching and beyond screening age. These findings highlight the need to raise awareness as well as continue discussions regarding considerations of lowering the screening age.

Indexed as

Colorectal NeoplasmsEarly Detection of CancerAdultFemaleHumansIncidenceLongitudinal StudiesMaleMass ScreeningMiddle AgedRegistriesYoung Adult

Identifiers

PMID33492399
PMCPMC8246802

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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.