Table 3 Patient demographics and clinicopathological characteristics between the QM group and CM group

Gender

χ² = 1.146

0.283

 Male, n(%)

149(64.2%)

104(59.4%)

 Female, n(%)

83(35.8%)

71(40.6%)

Age, years

67.05 ± 9.49

65.96 ± 10.03

t = 1.359

0.233

BMI, kg/m2, median (range)

24.4(22.3 ~ 26.7)

24.1(22.3 ~ 26.5)

z = -1.141

0.253

Hb, g/L, median (range)

123.3(116.3 ~ 132.4)

124.2(115.2 ~ 132.6)

z = -0.427

0.667

Alb, g/L, median (range)

38.7(36.3 ~ 41.5)

38.5(36.1 ~ 41.2)

z = 0.243

0.804

chronic disease

 Diabetes, n(%)

27(11.6%)

25(14.3%)

χ² = 0.981

0.319

 Hypertension, n(%)

41(17.7%)

38(21.7%)

χ² = 1.173

0.275

 pulmonary disease, n(%)

14(6.0%)

8(4.6%)

χ² = 0.389

0.536

History of abdominal surgery, n(%)

34(14.7%)

21(12.0%)

χ² = 0.853

0.354

Tumor diameter, cm, median (range)

2.7(1.3 ~ 4.2)

2.8(1.2 ~ 4.4)

z = -0.726

0.463

Tumor Location, n

χ² = 0.945

0.615

 Upper/Middle/Distal

77/47/108

57/42/76

Extent of resection

χ² = 0.375

0.527

 Total gastrectomy/Distal gastrectomy

123/109

98/76

Types of reconstruction

χ² = 0.375

0.527

 Roux-en-Y/ Billroth-II

123/109

98/76

ASA risk score, n(%)

χ² = 4.027

0.131

 I/II/III

62/118/52

52/97/26

Tumor stage, n(%)

χ² = 3.958

0.234

 I/II/III/IV

30/74/128/0

17/71/87/0