Efficacy of totally laparoscopic compared with laparoscopic-assisted total gastrectomy for gastric cancer: A meta-analysis

Table 1 Baseline characteristics of the included studies

Ref.	Nation	Publication year	Sample size		Age (years, mean ± SD)		BMI (kg/m2, mean ± SD)		NOS scores
			TLTG	LATG	TLTG	LATG	TLTG	LATG
Kim et al[13]	Korea	2013	90	23	58 ± 10.8	56.8 ± 14.2	23.2 ± 2.9	22.2 ± 1.8	7
Ito et al[20]	Japan	2014	117	46	/	/	/	/	6
Kim et al[14]	Korea	2016	27	29	60.8± 9.1	59.3 ± 13.1	24 ± 2.9	23.3 ± 3.2	7
Kim et al[15]	Korea	2016	30	24	51 ± 12.25	54.75 ± 11.25	22.2 ± 2.7	23.6 ± 2.95	8
Chen et al[16]	China	2016	108	145	59.4± 11.1	57.3 ± 12.5	23.5 ± 3.5	23.1 ± 4.2	8
Gong et al[19]	Korea	2017	421	266	57.78± 11.2	55.69 ± 11.96	/	/	7
Huang et al[17]	China	2017	51	456	55.5± 12.1	61.6 ± 11.2	22.5 ± 13.1	22.3 ± 13.5	7
Lu et al[18]	China	2017	25	25	59 ± 8.9	58.4 ± 7.7	22.5 ± 2.5	22.9 ± 3.7	8

TLTG: Totally laparoscopic total gastrectomy; LATG: Laparoscopic-assisted total gastrectomy; SD: Standard deviation; BMI: Body mass index; NOS: The Newcastle–Ottawa Scale.