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Colorectal cancer incidence, mortality, and stage distribution in European countries in the colorectal cancer screening era: an international population-based study

Cardoso, Rafael LU ; Sundquist, Kristina LU ; Sundquist, Jan LU and Brenner, Hermann (2021) In The Lancet Oncology 22(7). p.1002-1013
Abstract
Background: Colorectal cancer screening programmes and uptake vary substantially across Europe. We aimed to compare changes over time in colorectal cancer incidence, mortality, and stage distribution in relation to colorectal cancer screening implementation in European countries. Methods: Data from nearly 3·1 million patients with colorectal cancer diagnosed from 2000 onwards (up to 2016 for most countries) were obtained from 21 European countries, and were used to analyse changes over time in age-standardised colorectal cancer incidence and stage distribution. The WHO mortality database was used to analyse changes over time in age-standardised colorectal cancer mortality over the same period for the 16 countries with nationwide data.... (More)
Background: Colorectal cancer screening programmes and uptake vary substantially across Europe. We aimed to compare changes over time in colorectal cancer incidence, mortality, and stage distribution in relation to colorectal cancer screening implementation in European countries. Methods: Data from nearly 3·1 million patients with colorectal cancer diagnosed from 2000 onwards (up to 2016 for most countries) were obtained from 21 European countries, and were used to analyse changes over time in age-standardised colorectal cancer incidence and stage distribution. The WHO mortality database was used to analyse changes over time in age-standardised colorectal cancer mortality over the same period for the 16 countries with nationwide data. Incidence rates were calculated for all sites of the colon and rectum combined, as well as the subsites proximal colon, distal colon, and rectum. Average annual percentage changes (AAPCs) in incidence and mortality were estimated and relevant patterns were descriptively analysed. Findings: In countries with long-standing programmes of screening colonoscopy and faecal tests (ie, Austria, the Czech Republic, and Germany), colorectal cancer incidence decreased substantially over time, with AAPCs ranging from −2·5% (95% CI −2·8 to −2·2) to −1·6% (−2·0 to −1·2) in men and from −2·4% (−2·7 to −2·1) to −1·3% (−1·7 to −0·9) in women. In countries where screening programmes were implemented during the study period, age-standardised colorectal cancer incidence either remained stable or increased up to the year screening was implemented. AAPCs for these countries ranged from −0·2% (95% CI −1·4 to 1·0) to 1·5% (1·1 to 1·8) in men and from −0·5% (−1·7 to 0·6) to 1·2% (0·8 to 1·5) in women. Where high screening coverage and uptake were rapidly achieved (ie, Denmark, the Netherlands, and Slovenia), age-standardised incidence rates initially increased but then subsequently decreased. Conversely, colorectal cancer incidence increased in most countries where no large-scale screening programmes were available (eg, Bulgaria, Estonia, Norway, and Ukraine), with AAPCs ranging from 0·3% (95% CI 0·1 to 0·5) to 1·9% (1·2 to 2·6) in men and from 0·6% (0·4 to 0·8) to 1·1% (0·8 to 1·4) in women. The largest decreases in colorectal cancer mortality were seen in countries with long-standing screening programmes. Interpretation: We observed divergent trends in colorectal cancer incidence, mortality, and stage distribution across European countries, which appear to be largely explained by different levels of colorectal cancer screening implementation. Funding: German Cancer Aid (Deutsche Krebshilfe) and the German Federal Ministry of Education and Research. © 2021 Elsevier Ltd (Less)
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Contribution to journal
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published
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keywords
adult, age distribution, aged, cancer staging, clinical trial, colorectal tumor, early cancer diagnosis, Europe, female, human, incidence, male, middle aged, mortality, multicenter study, pathology, predictive value, register, sex ratio, time factor, Adult, Age Distribution, Aged, Colorectal Neoplasms, Early Detection of Cancer, Female, Humans, Incidence, Male, Middle Aged, Neoplasm Staging, Predictive Value of Tests, Registries, Sex Distribution, Time Factors
in
The Lancet Oncology
volume
22
issue
7
pages
12 pages
publisher
Elsevier
external identifiers
  • scopus:85108791289
  • pmid:34048685
ISSN
1474-5488
DOI
10.1016/S1470-2045(21)00199-6
language
English
LU publication?
yes
id
1699cd2c-1f82-4434-8663-36bd842dc97d
date added to LUP
2021-09-14 15:06:26
date last changed
2022-12-14 03:00:23
@article{1699cd2c-1f82-4434-8663-36bd842dc97d,
  abstract     = {{Background: Colorectal cancer screening programmes and uptake vary substantially across Europe. We aimed to compare changes over time in colorectal cancer incidence, mortality, and stage distribution in relation to colorectal cancer screening implementation in European countries. Methods: Data from nearly 3·1 million patients with colorectal cancer diagnosed from 2000 onwards (up to 2016 for most countries) were obtained from 21 European countries, and were used to analyse changes over time in age-standardised colorectal cancer incidence and stage distribution. The WHO mortality database was used to analyse changes over time in age-standardised colorectal cancer mortality over the same period for the 16 countries with nationwide data. Incidence rates were calculated for all sites of the colon and rectum combined, as well as the subsites proximal colon, distal colon, and rectum. Average annual percentage changes (AAPCs) in incidence and mortality were estimated and relevant patterns were descriptively analysed. Findings: In countries with long-standing programmes of screening colonoscopy and faecal tests (ie, Austria, the Czech Republic, and Germany), colorectal cancer incidence decreased substantially over time, with AAPCs ranging from −2·5% (95% CI −2·8 to −2·2) to −1·6% (−2·0 to −1·2) in men and from −2·4% (−2·7 to −2·1) to −1·3% (−1·7 to −0·9) in women. In countries where screening programmes were implemented during the study period, age-standardised colorectal cancer incidence either remained stable or increased up to the year screening was implemented. AAPCs for these countries ranged from −0·2% (95% CI −1·4 to 1·0) to 1·5% (1·1 to 1·8) in men and from −0·5% (−1·7 to 0·6) to 1·2% (0·8 to 1·5) in women. Where high screening coverage and uptake were rapidly achieved (ie, Denmark, the Netherlands, and Slovenia), age-standardised incidence rates initially increased but then subsequently decreased. Conversely, colorectal cancer incidence increased in most countries where no large-scale screening programmes were available (eg, Bulgaria, Estonia, Norway, and Ukraine), with AAPCs ranging from 0·3% (95% CI 0·1 to 0·5) to 1·9% (1·2 to 2·6) in men and from 0·6% (0·4 to 0·8) to 1·1% (0·8 to 1·4) in women. The largest decreases in colorectal cancer mortality were seen in countries with long-standing screening programmes. Interpretation: We observed divergent trends in colorectal cancer incidence, mortality, and stage distribution across European countries, which appear to be largely explained by different levels of colorectal cancer screening implementation. Funding: German Cancer Aid (Deutsche Krebshilfe) and the German Federal Ministry of Education and Research. © 2021 Elsevier Ltd}},
  author       = {{Cardoso, Rafael and Sundquist, Kristina and Sundquist, Jan and Brenner, Hermann}},
  issn         = {{1474-5488}},
  keywords     = {{adult; age distribution; aged; cancer staging; clinical trial; colorectal tumor; early cancer diagnosis; Europe; female; human; incidence; male; middle aged; mortality; multicenter study; pathology; predictive value; register; sex ratio; time factor; Adult; Age Distribution; Aged; Colorectal Neoplasms; Early Detection of Cancer; Female; Humans; Incidence; Male; Middle Aged; Neoplasm Staging; Predictive Value of Tests; Registries; Sex Distribution; Time Factors}},
  language     = {{eng}},
  number       = {{7}},
  pages        = {{1002--1013}},
  publisher    = {{Elsevier}},
  series       = {{The Lancet Oncology}},
  title        = {{Colorectal cancer incidence, mortality, and stage distribution in European countries in the colorectal cancer screening era: an international population-based study}},
  url          = {{http://dx.doi.org/10.1016/S1470-2045(21)00199-6}},
  doi          = {{10.1016/S1470-2045(21)00199-6}},
  volume       = {{22}},
  year         = {{2021}},
}