Table 2.

Centre survey

	Data criteria	Options
Centre details
1(a)	Does your unit care for?	Adults only Children only Adults and children
2	Does your hospital have an on-site gynaecology service?	Yes No
3	Does your centre have ‘review clinic’ slots for patients to return for further assessment/imaging the following day if a diagnosis is unclear?	Yes—with ultrasound and clinical review Yes—clinical review only No
4(a)	How many consultants will be ‘on call’ during the 2-week study period?	Number =
4(b)	How many consultant general surgeons work at your centre?	Number =
4(c)	Is there a dedicated registrar based on the surgical assessment unit to review patients?	Yes—24/7 Yes—during the day No—one registrar splits time between theatre and the surgical assessmment unit
5	At weekends, is ultrasound available?	Yes No
6(a)	At weekends, is CT available?	Equivalent to weekday service Reduced service but available for urgent surgical requests Not available
6(b)	At night, is CT available?	Equivalent to weekday service Reduced service but available for urgent surgical requests Not available
Does your centre have an agreed policy for:
7	When to use appendicitis risk stratification scores?	Yes—use of score recommended Yes—use of score discouraged No policy in place
8	Which patients should have a CT scan prior to appendicectomy? (eg, diagnosis unclear, age>50)	Yes—please detail No policy in place
9	Whether some patients with appendicitis may be managed non-operatively?	Yes—conservative management recommended for some patients; please detail Yes—policy discourages conservative management No policy in place
10	Whether laparoscopic or open appendicectomy should be routinely performed?	Yes—open surgery recommended Yes—laparoscopic surgery recommended No policy in place
11	Whether a macroscopically normal looking appendix should be removed or left in situ?	Yes—removal recommended Yes—recommend it be left in situ No—no policy in place