Should a colonoscopy be offered routinely to patients with CT proven acute diverticulitis? A retrospective cohort study and meta-analysis of best available evidence

Table 2 Baseline characteristics of the included studies in the meta-analysis

Ref.	Year	Country	Journal	Design	Descrip-tion of diverticuli-tis group	Descrip-tion of control group	How diverticuli-tis is diagnosed	Time from diagnosis to endoscopy	Sample size
									Diverticuli-tis group	Screening group
Current study	2018	United Kingdom	Not applicable	Retrospec-tive observation-al	Patients undergoing a colonoscopy after medical treatment of CT proven diverticulitis	Individuals from the general population undergoing flexible sigmoidos-copy for screening purposes at age of 55	Computed tomography	up to 12 mo	68	1309
Daniels et al[16]	2014	The Netherlands	Surg Endosc	Retrospec-tive observation-al	Patients undergoing a colonoscopy after medical treatment of CT proven diverticulitis	Individuals from the general population between the age of 50-75 undergoing screening colonoscopy	Computed tomography	up to 6 mo	401	1426
Lecleire et al[17]	2014	France	United European Gastroenterol J	Retrospec-tive observation-al	Patients undergoing a colonoscopy after medical treatment of CT proven diverticulitis	Asymptomatic patients undergoing a screening colonoscopy	Computed tomography	up to 6 mo	404	404
Choi et al[24]	2014	South Korea	Dig Dis Sci	Retrospec-tive observation-al	Patients undergoing a colonoscopy after medical treatment of CT proven diverticulitis	Healthy individuals undergoing screening colonoscopy	Computed tomography	up to 12 mo	149	298