Five-Year Colon Surveillance After Screening Colonoscopy

Diagram of study plan with enrollment in each arm of the study.

Interval cancer and adenoma with high-grade dysplasia: time of diagnosis and interval colonoscopy examinations. Legend: The interval between baseline colonoscopy and discovery of new cancer or high-grade dysplasia is graphically depicted in a time graph. Interval colonoscopy examinations are noted when they were performed. Footnote: Six patients who had cancer at baseline developed interval cancer or high-grade dysplasia. The location and stage of the baseline cancers are included.