Feasibility of laparoscopic total gastrectomy in overweight patients: Implications of less impact of overweight on laparoscopic versus open approach

Table 2 Baseline characteristics of non-overweight and overweight groups in both laparoscopy and open groups

		LTG (n = 76)			OTG (n = 76)
		non-OW (n = 57)	OW (n = 19)	P -values	non-OW (n = 63)	OW (n = 13)	P-values
Gender	Male	42	13	0.66	52	10	0.45
	Female	15	6		11	3
Age (median, range)		70 (40-83)	64 (32-79)	0.06	72 (17-80.6)	71 (29-79)	0.73
BMI (median, range)		21.2 (15.8-24.8)	26.6 (25.2-30.4)	< 0.01	20.9 (13.6-24.9)	27.6 (25.0-35.4)	< 0.01
Extent of lymph node dissection	< D2	42	15	0.42	42	11	0.17
	D2 ≤	15	4		21	2
Splenectomy	Yes	11	3	0.73	17	2	0.31
	No	46	16		46	11
Tumor size (mm) (median, range)		56 (6-185)	50 (7-200)	0.43	53 (14-211)	75 (25-210)	0.25
Depth of tumor	M	7	2	0.11	6	0	0.37
	SM	15	6		12	5
	MP	5	6		7	1
	SS	16	3		18	2
	SE	14	2		18	4
	SI	0	0		1	1
Lymph node classification	N0	26	12	0.43	30	6	0.85
	N1	9	4		6	1
	N2	10	2		9	3
	N3a	8	1		11	1
	N3b	4	0		7	2
pStage	I	25	10	0.34	26	6	0.51
	II	11	6		9	0
	III	17	2		22	5
	IV	4	1		6	2

OTG: Open total gastrectomy; LTG: Laparoscopic total gastrectomy; BMI: Body mass index; non-OW: Non-overweight group; OW: Overweight group.