Table 1 Participant and service characteristics by number and percentage (within each demographic category).

Category	N (%)
*In the UK and Ireland, Bowel Cancer Screening services are those that provide an accredited screening service for bowel cancer
Sex
Male	153 (33.8)
Female	297 (65.6)
Non-binary/third gender	1 (0.2)
Prefer not to say	2 (0.4)
Age
18–24	5 (1.1)
25–34	58 (12.8)
35–44	122 (26.9)
45–54	157 (34.7)
55–64	98 (21.6)
65 and older	13 (2.9)
Years in role
<6 months	21 (4.6)
6 to 11 months	28 (6.2)
1 to 2 years	69 (15.2)
3 to 4 years	69 (15.2)
5 to 10 years	107 (23.6)
11 to 20 years	101 (22.3)
21 years or more	58 (12.8)
Role
Administrator/non-clinical manager	34 (7.5)
Decontamination Technician	3 (0.7)
Endoscopist–Clinical (including nurse)	55 (12.1)
Endoscopist–Consultant	125 (27.6)
Endoscopist–Medical Trainee	15 (3.3)
Endoscopist–Other	9 (2)
Endoscopist–Surgical Trainee	4 (0.9)
Endoscopy Nurse	141 (31.1)
Healthcare Assistant	18 (4)
Other	37 (8.2)
Porter	1 (0.2)
Bowel Cancer Screening Practitioner	11 (2.4)
Sector
NHS/public sector	421 (92.9)
Independent/private sector	32 (7.1)
Work in Bowel Cancer Screening* service?
Yes	373 (82.3)
Work in JAG accredited service?
Yes	367 (81.0)
Region
East Midlands	27 (6)
East of England	38 (8.4)
Greater London	78 (17.2)
North East	39 (8.6)
North West	48 (10.6)
Northern Ireland	18 (4)
Republic of Ireland	14 (3.1)
Scotland	13 (2.9)
South East	40 (8.8)
South West	37 (8.2)
Wales	25 (5.5)
West Midlands	52 (11.5)
Yorkshire and the Humber	24 (5.3)