ArticleCancer biology & medicine2026
Global landscape and temporal trends in lifetime risk of colorectal cancer in 185 countries: a population-based study.
Article in Cancer biology & medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveColorectal cancer (CRC) is the third most common cancer and the second leading cause of cancer-related mortality worldwide. This study was aimed at estimating regional and national variations in lifetime CRC risk worldwide.
methodsCRC data were extracted from GLOBOCAN 2022, including 185 countries, and population and all-cause mortality data were sourced from the United Nations. The world was divided into 20 geographical regions and categorized by Human Development Index (HDI). Lifetime CRC risk was estimated with the life table method, adjusted for multiple primary cancers.
resultsIn 2022, the lifetime risks of developing and dying from CRC were 2.69% [95% confidence interval (CI): 2.68-2.70] and 1.39% (95% CI: 1.39-1.40), respectively. Men had a higher risk of colon cancer than rectal cancer, and higher CRC risk than women. Lifetime risk varied by region and HDI: regions with very high, high, moderate, and low HDI had incidence risks of 5.17%, 2.75%, 0.72%, and 0.57%, respectively, and mortality risks of 2.48%, 1.50%, 0.44%, and 0.41%, respectively. Australia/New Zealand had the highest incidence risk (7.41%, 95% CI: 7.30-7.52), and Northern Europe the highest mortality risk (3.28%, 95% CI: 3.24-3.32). Risks were stable before 40 years of age, peaked in middle age, and declined after 70 years of age. Temporally, Thailand had the highest increasing trend in lifetime risk, whereas the United States and Austria showed a decreasing trend.
conclusionsLifetime CRC risk differs by subtype, sex, HDI, and geography, and residual risk gradually decreases with age. Targeted primary prevention strategies should be implemented in various countries and regions to mitigate CRC burden.
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