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| Photo courtesy: Journal of Young Adult Oncology |
CANCER DIGEST – Jan. 23, 2015 – The incidence of colorectal cancer (CRC) among young adults ages 20-39 years has increased during the past 20-30 years, despite declining rates of CRC for the U.S. population overall, a new analysis shows.
Researchers at the University of California, Irvine, led by Kathryn Singh, MPH, MS, analyzed more than 231,500 CRC cases over a 22-year period, including 5,617 cases affecting young adults. The study appears online in the Journal of Adolescent and Young Adult Oncology.
CRC is uncommon in people younger than 50 years of age. Among older adults, screening to detect and remove precancerous polyps has largely contributed to declining CRC rates for the U.S. population as a whole.
While the study showed the absolute incidence of colorectal cancer per 100,000 young people remains low ranging from 0.7 per 100,000 among Hispanic and African American females aged 20–29, and up to 5.0 per 100,000 among Asian/Pacific Islander males aged 30–39, across the study period, the authors found significant increases in colorectal cancer incidence among the 20-29 year and 30-39 year age groups.
The data also showed greater CRC risk for certain racial groups, and differences in tumor location and stage at diagnosis for young adults compared to individuals 50 years of age and older.
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