Table 1 Demographic data of cholangiocarcinoma patients and non-cholangiocarcinoma population

Gender

4,225

32

4,193

0.334^a

 Male

1,919

18

1,901

(45.4)

(56.3)

(45.3)

 Female

2,306

14

2,292

(54.6)

(43.7)

(54.7)

Age (year)

45.71

51.91

45.68

<0.001^c

History of smoking

4,217

27

4,190

0.092^a

 Never

2,756

14

2,742

(65.4)

(51.9)

(65.4)

 Ex-smoker

718

9

709

(17.0)

(33.3)

(16.9)

 Active smoker

743

4

739

(17.6)

(14.8)

(17.7)

Alcoholic consumption

4,217

27

4,190

<0.001^b

 Never

1,315

9

1,306

(31.2)

(33.4)

(31.2)

 Ex-consumption

492

10

482

(11.7)

(37.0)

(11.5)

 Light consumption (< once a month)

1,360

4

1,356

(32.2)

(14.8)

(32.3)

Moderate to heavy consumption

1,050

4

1,046

(24.9)

(14.8)

(25.0)

Any liver cancers or cholangiocarcinoma in first-degree relatives

4,202

27

4,175

0.037^a

 Yes

722

9

713

(17.2)

(33.3)

(17.1)

 No

3,480

18

3,462

(82.8)

(66.7)

(82.9)

Diagnosis of liver fluke

4,153

27

4,126

0.366^a

 Ever

753

7

746

(18.1)

(25.9)

(18.1)

 Never

3,293

19

3,274

(79.3)

(70.4)

(79.3)

 Unknown

107

1

106

(2.6)

(3.7)

(2.6)