Demographic characteristics and household annual income of patient and professional participants, including non-traders.

Data are number (percentage).* Of the original 75 patients accrued, 3 discontinued the survey without providing any consistent, logical responses. Qualitative exploration by the interviewer revealed they did not understand the process so data were not included.** Comprising 5 gastroenterologists, 5 radiologists, 5 colorectal surgeons, 10 Specialist registrars in these specialities, 5 bowel cancer screening nurses and 20 CT radiographers.