Clinical factor

Standing between

patient’s legs

(n = 35)

Standing at the left

side of patient

(n = 43)

P

value

Age

61.2 ± 11.3

59.5 ± 12.6

0.537

Male: Female

21:14

26:17

0.967

BMI (kg/m²)

24.5 ± 3.6

25.1 ± 4.2

0.506

Previous abdominal surgery

6

7

0.919

Tumor location

hepatic flexure

9

12

0.828

Ascending colon

26

31

TNM staging before surgery

I

6

7

0.994

II

16

20

III

13

16