Table 2.

Studies’ characteristics

Study	Year	Country	Study design	Inclusion criteria	Exclusion criteria	Primary outcome	Sample size	Elegible patients	Analysis	Enrolled patients	Laparoscopic drainage	Bowel resection	Study quality	Limits
DILALA	2010–2014	Sweden, Denmark	multicentric RCT	patients with Hinchey III diverticulitis at diagnostic laparoscopy	not reported	reoperation at 12 months	64	not reported	ITT	83	43	40	High
SCANDIV	2010–2014	Sweden, Norway	multicentric RCT	patients with free air at abdominal CT scan	obstruction pregnancy	severe complications and death at 90 days	130	216	modified ITT	144a	74a	70a	High	includes also patients with Hinchey I-II
LADIES	2010–2013	Belgium, Netherlands, Italy	multicentric RCT	patients with Hinchey III diverticulitis at diagnostic laparoscopy	dementia, previous abdominal irradiation, high dose steroidal therapy, shock, age >85	severe complications and mortality at 12 months	264	241	ITT	88	46	42	High	premature ending

^a subgroup analysis of patients with Hinchey grade I-II-III diverticulitis