Table 1

Demographic and preoperative characteristics of patients undergoing gastrectomy

Characteristic	Surgical approach; no. (%)^*		p value
Characteristic	OG	LAG	p value
Patients, no.	47	13
Age, mean (SD) yr	74.6 (8.1)	68.6 (12.4)	0.12
Sex, no. male:female	28:19	5:8	0.18
BMI, mean (SD)	20.9 (9.7)	25.2 (4.9)	0.18
Comorbidity
Hypertension	24 (51.1)	4 (30.7)	0.23
Cardiac disease	0 (0)	4 (30.7)	—
Diabetes	3 (6.4)	4 (30.7)	0.034
Chronic renal failure	7 (14.9)	4 (30.7)	0.23
Stage according to pTNM^†
I	13 (27.7)	3 (23.1)	> 0.99
II	5 (10.6)	5 (38.5)	0.031
III	21 (47.7)	3 (23.1)	0.21
IV	8 (17.0)	2 (15.4)	> 0.99
Neoadjuvant chemotherapy^‡	1 (2.1)	2 (15.4)	0.12

BMI = body mass index; LAG = laparoscipcal assisted gastrectomy; OG = open gastrectomy; pTNM = pathological tumour, node, metastasis; SD = standard deviation.
↵* Unless otherwise indicated.
↵† AJCC Cancer Staging Manual, 6th edition. (19)
↵‡ MAGIC protocol.