Proportion and characteristics of screen-detected and non-screen-detected colo­rectal cancers in Germany

Authors

  • Michel Hornschuch Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology – BIPS, Bremen, Germany https://orcid.org/0000-0002-8385-2019
  • Sarina Schwarz Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology – BIPS, Bremen, Germany https://orcid.org/0000-0002-7926-2032
  • Ulrike Haug Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology – BIPS, Bremen, Germany; Faculty of Human and Health Sciences, University of Bremen, Germany https://orcid.org/0000-0002-1886-2923

DOI:

https://doi.org/10.2340/1651-226X.2024.40234

Keywords:

Screening, colonoscopy, fecal occult blood test, Germany

Abstract

Background: Germany has a long-standing colorectal cancer (CRC) screening offer. We aimed to quantify and characterize screen-detected colorectal cancers (sdCRCs) in Germany.

Methods: We conducted a cross-sectional study based on a healthcare database covering ~20% of the German population; we included CRC patients aged ≥ 55 years diagnosed in 2010–2018. Patients with a screening colonoscopy or a fecal occult blood test followed by colonoscopy within 180 days before diagnosis were classified as sdCRCs and compared to non-sdCRCs regarding age, stage and comorbidities.

Results: In 2018, 25% of male and 22% of female CRC patients were screen-detected. Regarding characteristics of all included CRC cases (N = 82,538), sdCRC patients were younger than non-sdCRCs (average difference men / women: 2.6 / 4.4 years). The proportion of advanced CRC among sdCRCs and non-sdCRCs, respectively, was 33 and 42% in women (men: 36 and 45%). Severe comorbidities were more prevalent in non-sdCRCs compared to sdCRCs (e.g. in male / female patients aged 65–74: 35% vs. 27% / 26% vs. 19%). Prevalences of hypertension and obesity were similar in both groups.

Interpretation: Our study suggests that about one fourth of CRCs in Germany are screen-detected. Among patients with non-sdCRC, not only advanced stage but also severe comorbidity was more common than in sdCRCs.

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Additional Files

Published

2024-11-24

How to Cite

Hornschuch, M., Schwarz, S., & Haug, U. (2024). Proportion and characteristics of screen-detected and non-screen-detected colo­rectal cancers in Germany. Acta Oncologica, 63(1), 924–931. https://doi.org/10.2340/1651-226X.2024.40234