COLONOSCOPIC SCREENING IN AVERAGE RISK INDIVIDUALS AGES 40 TO 49 VERSUS 50 TO 59 YEARS

摘要

Background and AimsScreening guidelines for colorectal cancer include colonoscopy starting at age 50 based on the prevalence of adenomas and the incidence of colon cancer at that age. However, only one prior study has investigated the prevalence of colorectal neoplasia with colonoscopic screening in asymptomatic average-risk individuals ages 40-49 years in the United States.