Risk of metachronous neoplasia on surveillance colonoscopy among young and older patients after polypectomy

Background and aims Few reports address the appropriate colonoscopy surveillance interval for individuals <50-years-old. We compared the risk of metachronous neoplasia among young (<50 years), adult (50–74 years) and older (≥75 y) age groups. Methods This was a single center retrospective cohort study. Eligible subjects underwent their first colonoscopy with polypectomy between 2005 and 2014 and had at least one surveillance colonoscopy 3–5...