Frequency and efficacy of additional investigations following incomplete colonoscopies: A population-based analysis.

Background: Limited data are available on the follow-up of patients with incomplete colonoscopy following positive faecal occult blood testing. Our study aimed to determine the proportion of and reasons for incomplete colonoscopies, the proportion of patients who completed colonic evaluations, the methods used and the subsequent findings.

Methods: A total of 9483 colonoscopies performed after positive testing in a colorectal cancer screening programme setting were included.