Daikenchuto for postoperative adhesive small bowel obstruction: A systematic review and meta-analysis

Table 1 Characteristics of included studies

Ref.	Year	Country	Study design	Dose (g)	No. of patients with Daikenchuto (surgery: No surgery)	No. of patients without Daikenchuto (surgery: No surgery)	OR (95%CI)
Oyabu et al[23]	1995	Japan	RCT	15	1:27	5:20	0.15 (0.02-1.37)
Kubo et al[24]	1995	Japan	RCT	15	1:17	2:10	0.29 (0.02-3.67)
Itohet al[25]	2002	Japan	RCT	15	5:8	10:1	0.06 (0.01-0.65)
Moriwaki et al[26]	1992	Japan	Retrospective cohort	15	1:23	49:154	0.14 (0.02-1.04)
Furukawa et al[27]	1995	Japan	Retrospective cohort	7.5-15.0	6:20	26:49	0.57 (0.20-1.58)
Yasunaga et al[28]	2011	Japan	Retrospective cohort	Not mentioned	20:124	28:116	0.67 (0.36-1.25)

RCT: Randomized controlled trial.