Table 4 Characteristics of patients with PSM

Age

65.9 ± 1.66

67.9 ± 1.64

0.38

Sex

Male

35

35

0.95

Female

13

13

BMI

23.7 ± 0.51

23.4 ± 0.65

0.77

Pathological stage

0

1

1

1.00

I

18

18

II

15

15

III

12

12

IV

2

2

Approach

Open

23

22

0.83

Lap/Robo

25

26

LN dissection

D1 + 

18

14

0.36

D2

30

33

D2 + 

0

1

Combined surgery

1

2

0.55

GB

0

0

Spleen

1

2

Liver

0

0

Operation time (min)

339 ± 9.8

310 ± 12

0.07

Intraope blood loss (ml)

177 ± 25

97 ± 31

0.05