Table 1 Comparison of the clinicopathological features among low or high level IL-6 subgroups

Age (y)

0.05

< 60

48

37

11

≥ 60

74

44

30

Gender

1.00

Male

78

52

26

Female

44

29

15

Type of operation

0.16

Laparotomy

26

14

12

Laparoscopy

96

67

29

Tumor location

0.52

Right

32

23

9

Left

90

58

32

History of smoking

0.10

Current + past

39

30

9

Never

83

51

32

History of drinking

0.43

Current + past

46

33

13

Never

76

48

28

Histological grade

0.42

Well + moderate

105

68

37

Poor

17

13

4

Mucinous elements

0.63

Without

101

66

35

With

21

15

6

T stages

0.43

T₁ + T₂

19

11

8

T₃ + T₄

103

70

33

N stages

0.34

N₀

67

47

20

N₁₊N₂

55

34

21

TNM stages

0.34

I + II

67

48

20

III

55

34

21

BMI (kg/m ² )

122

23.34 ± 3.09

22.62 ± 3.29

0.23