Table 1 Gallbladder cancer patient characteristics

Gender

Male

37

33.9

Female

72

66.1

Age (yrs)

Median

65

Range

37–89

CA199 (107 cases)

 > 37 U/ml

52

48.6

CEA (105 cases)

 > 5 ng/ml

26

24.8

Gallstone

61

56.0

Bile duct stone

20

18.3

Hepatitis

5

4.6

Hypertension

37

33.9

Diabetes

7

6.4

History of schistosomiasis

5

4.6

Jaundice

Serum bilirubin > 17.1 μmol/L

29

26.6

Serum bilirubin > 34.2 μmol/L

16

14.7

T stage

Tis

6

5.5

T1

10

9.2

T2

50

45.9

T3

35

32.1

T4

8

7.3

N stage

N0

67

61.5

N1

26

23.9

N2

16

14.7

Distant metastasis

9

8.3

AJCC 8th Staging System

0

6

5.5

I

10

9.2

II

31

28.4

III

36

33.0

IV

26

23.9

Liver invasion

30

27.5

Perineural invasion

33

30.3

Lymphovascular invasion

36

33.0

Tumor differentiation

Well differentiated

20

18.3

Moderate differentiated

35

32.1

Poor differentiated

45

41.3

Undifferentiated

1

0.9

Unknown

8

7.3

Adjuvant chemotherapy

8

7.3

Adjuvant chemoradiotherapy

5

4.6