Clinical Research Directory

Inclusion Criteria: Subjects are eligible if: (i) They underwent randomization to receive colonoscopy with/without CADe in ENDOAID-TRAIN study \[NCT04838951\]; (ii) They are fit and willing to undergo surveillance colonoscopy at year 3; (iii) Written informed consent obtained. Exclusion Criteria: Subjects will be excluded from the study if they have any of the followings: (i) Incomplete colonoscopy during index procedure; (ii) Known residual colorectal neoplasia not removed (except hyperplastic polyps); (iii) Underwent unscheduled interval colonoscopy before year 3; (iv) Contraindications to surveillance colonoscopy at year 3; (v) Advanced comorbid (American Society of Anesthesiologists grade 4 or above); (vi) History of CRC, hereditary polyposis syndrome or inflammatory bowel disease; (vii) History of colectomy at any time point.