Table 1 Demographics and pathological characteristics of oCRC patients

n

%

n

%

129

100

52

100

Sex

Male

69

53.49

31

59.62

0.453

Female

60

46.51

21

40.38

Age (years)

<60

51

39.53

16

30.77

0.269

≥60

78

60.47

36

69.23

Obstructive type

Acute complete obstruction

9

6.98

8

15.38

0.079

Incomplete obstruction

120

93.02

44

84.62

Obstructive site

Right colon

52

40.31

22

42.31

0.929

Left colon

49

37.98

20

38.46

Rectum

28

21.71

10

19.23

Surgical procedure

Palliative resection

43

33.33

22

42.31

0.255

Radical resection

86

66.67

30

57.69

T stage

T2+3

9

6.98

7

13.46

0.165

T4

120

93.02

45

86.54

N stage

N0

60

46.51

33

63.46

0.161

N1

46

35.66

8

15.38

N2

23

17.83

11

21.15

M stage

M0

90

69.77

47

90.38

0.004

M1

39

30.23

5

9.62

TNM stage

I+II

47

36.43

30

57.69

0.002

III

43

33.33

17

32.69

IV

39

30.23

5

9.62

Histopathology

Adenocarcinoma

100

77.52

41

78.85

0.846

Mucinous or signet ring adenocarcinoma

29

22.48

11

21.15

WBC (×10^9/L)

<9.5

111

86.05

36

69.23

0.009

≥9.5

18

13.95

16

30.77

NCP (%)

<75

91

70.54

29

55.77

0.057

≥75

38

29.46

23

44.23

HGB (g/L)

>120

62

48.06

29

55.77

0.348

≤120

67

51.94

23

44.23

PLT (×10^9/L)

<350

105

81.4

42

80.77

0.922

≥350

24

18.6

10

19.23

CEA (ng/ml)

<5

55

42.64

29

55.77

0.109

≥5

74

57.36

23

44.23

CA19-9 (U/ml)

<27

82

63.57

38

73.08

0.221

≥27

47

36.43

14

26.92

Albumin (g/L)

>40

56

43.41

25

48.08

0.568

≤40

73

56.59

27

51.92

Na (mmol/L)

>137

94

72.87

37

71.15

0.815

≤137

35

27.13

15

28.85

K (mmol/L)

>3.5

113

87.6

42

80.77

0.236

≤3.5

16

12.4

10

19.23

Ca (mmol/L)

>2.11

114

88.37

41

78.85

0.098

≤2.11

15

11.63

11

21.15

Cl (mmol/L)

>99

111

86.05

40

76.92

0.135

≤99

18

13.95

12

23.08