Table 1 Inclusion and exclusion criteria for NHS England Criteria used in the CESCAIL study [3, 10]
Patient type | Inclusion criteria | Exclusion criteria |
|---|---|---|
All | - Over 18 years of age - Able to provide valid consent | - Difficulty swallowing - Indwelling electromedical device - Insulin dependent diabetes - Past medical history of stricture - Pregnancy - Unfit for bowel preparation |
Symptomatic | - Referred from the primary care under the lower gastrointestinal two week wait pathway - assessed by a secondary care consultant | - Predominant referral symptom of diarrhoea - F-Hb ≥ 100 μg/g - Microcytic anaemia as the sole investigation reason |
Surveillance | - Due post polypectomy surveillance colonoscopy within a month before, during and after the recruitment period - More than 5 polyps in last colonoscopy - Presence of one or more advance polyp (≥ 10 mm in size), serrated polyp with dysplasia, adenoma with high-grade dysplasia [12] | - Family history of colorectal cancer - History of colonic polyposis - Hereditary non-polyposis syndrome |