Clinical factor

Standing

between

patient’s legs

(n = 35)

Standing at

the left side

of patient

(n = 43)

P

value

Tumour length (cm)

4.2 ± 1.3

3.9 ± 1.5

0.354

Number of dissected lymph nodes (n)

27.5 ± 11.6

25.1 ± 15.4

0.448

Pathological type

Uplift type

12

14

0.761

Ulcer type

14

19

Invasive type

9

10

Postoperative pathological TNM stage

I

4

3

0.761

II

15

18

III

16

22

Postoperative complications (n)

8

10

0.967