Table 1 Demographic and clinical characteristics of study cohorts

n

130

216

116

33

195

Gender (n, male/female)

72/58

124/92

83/33

22/11

89/106

Age (mean ± SD)

59.68 ± 11.53

58.07 ± 10.65

61.38 ± 12.51

50.94 ± 12.18

48.02 ± 14.87

Range

28–89

24–83

26–89

24 ~ 72

24 ~ 76

CEA (median, range)

3.22, 0.49 ~ 2056

0.70, 0.08 ~ 8.96

2.28, 0.94–277.5

2.15, 0.23–6.52

0.43, 0.06–7.87

AFP (median, range)

2.54, 1.04 ~ 8.00

2.98, 0.15 ~ 11.75

3.03, 1.06–7.95

3.15, 2.13–6.36

2.53, 0.06–5.82

Presampling chemotherapy(n)

13

10

CRC stages(n)

 I

26

19

 II

39

43

 III

42

44

 IV

14

7

 NA

9

3

Pathological pattern

Adenocarcinoma

112

Tubular adenocarcinoma

6

Mucinous adenocarcinoma

5

Unknown

7

PC category(n)

Polyp

20

Inflammatory colitis

7

 Intestinal obstruction

1

Mixed hemorrhoids

5

Smoker(n)

26

35

Alcohol consumption(> 100 g/day)

23

30