Comparison of hand-assisted laparoscopic radical gastrectomy and laparoscopic-assisted radical gastrectomy: A systematic review and meta-analysis

Table 1 Characteristics of the included studies

Ref.	Year	Nation	Geographical region	Study period	Sample size		Age, mean (yr)		Gender (M/F)		Tumor stage		Types of operation
					HALG	LAG	HALG	LAG	HALG	LAG	HALG	LAG	HALG			LAG
											I/II/III/IV	I/II/III/IV	TG	DG	PG	TG	DG	PG
Gong et al[13]	2014	China	Southwest	2008-2013	120	113	58.94	59.29	75/45	82/31	15/19/46/40	9/15/52/37	46	61	13	31	59	23
Wang[16]	2015	China	North	2010-2013	61	65	NA	NA	NA	NA	NA	NA	0	61	0	0	60	0
Yang et al[18]	2016	China	Southwest	2013-2015	42	42	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Xue et al[17]	2018	China	Central	2015-2016	28	28	52.68	52.74	21/7	20/8	3/7/18/0	2/5/21/0	0	28	0	0	28	0
Gao et al[15]	2019	China	East	2013-2014	51	50	57.6	58.2	32/19	36/14	10/12/29/0	13/15/22/0	12	39	0	17	33	0

TG: Total gastrectomy; DG: Distal gastrectomy; PG: Proximal gastrectomy; NA: Not reported; HALG: Hand-assisted laparoscopic gastrectomy; LAG: Laparoscopic-assisted gastrectomy.

Table 2 Jadad scores of the included randomized controlled trials

Ref.	Randomization	Blind	Withdrawals and dropouts	Total
Gong et al[13], 2014	1	0	1	2
Wang[16], 2015	1	0	1	2
Yang et al[18], 2016	1	0	1	2
Xue et al[17], 2018	2	0	1	3
Gao et al[15], 2019	2	0	1	3