Age-stratified gradients of colorectal neoplasia and an exploratory endoscopic red-flag composite in a lesion-confirmed screening colonoscopy cohort
9Objective To characterise age-related gradients in colorectal lesion severity and prespecified high-risk endoscopic features in a lesion-confirmed screening colonoscopy cohort and to evaluate an investigator-defined red-flag composite as an exploratory marker of advanced pathology. Helicobacter pylori was assessed as...