Colorectal cancer screening with the fecal immunochemical test in persons aged 30 to 49 years: focusing on the age for commencing screening

FIT-positive individuals aged 35 to 49 years had a higher risk of ACRN compared with average-risk individuals aged 50 to 59 years. FIT-positive individuals aged 35 to 49 years may benefit from screening colonoscopy, thus justifying the possibility of commencing FIT from age 35 years.