Global analysis finds early onset colorectal cancer now rising in many high-income countries

A new study by the American Cancer Society, found that colorectal cancer (CRC) incidence are increasing exclusively in young adults in nine high-income countries spanning three continents. Appearing in the journal Gut, the stud finds the rising rates are in contrast to stable or declining trends in older adults, suggesting that changes in early-life exposures are increasing CRC risk. In general, CRC incidence is rising in low- and middle-income countries but beginning to stabilize or decline in high-income countries, especially those that have implemented screening. However, studies of cancer registry data indicate that favorable overall trends in the United States and Canada are masking an increase in young-onset CRC.

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