Table 1.

Demographic data of the patients in this study

	GL group	OS group
	(number = 30)	(number = 32)	P value
Age (years)	62 ± 12.5	62 ± 11.8	0.97
Sex ratio (M:F)	8:22	12:20	0.28
BMI (kg/m2)	24.7 ± 2.5	24.3 ± 2.9	0.59
ASA score	2.3 ± 0.5	2.1 ± 0.3	0.06
Tumor sizea (cm)	5.84 ± 1.92	7.0 ± 2.3	0.645
Location: cardiac: fundus: body: antrum	7:6:10:7	9:7:9:7

^aTumors were measured after resection as A × B × C cm (for example, A = 8 cm, B = 4 cm, C = 3 cm), and tumor size was recorded as the longer length (A: 8 cm). It was, therefore, possible that, on occasion, the tumor was larger than the incision wound. Values are mean ± standard deviation. ASA American society of anesthesiology; GL gasless laparoscopy; OS traditional open surgery.