Table 7

Minimum standards and targets for colonoscopy in the Bowel Cancer Screening Programme15

MeasureMinimum standardTarget
Adenoma detection rate≥35%≥40%
Unadjusted caecal intubation rate≥90%≥97%
Mean colonoscopy withdrawal time (negative-complete)≥6 min≥10 min
Bowel prep quality (described as excellent or adequate)≥90%≥95%
Polyp retrieval rate≥90%≥95%
Perforation rate<1 per 1000
Post polypectomy bleeding rate<1 per 100
Comfort scores100% recorded