Table 2 Odds ratio (OR) of death from HCC by characteristics of smoking habits, smoking period and smoking average number

From: The effect of interaction between hepatitis C virus and cigarette smoking on the risk of hepatocellular carcinoma

 

Anti-HCV positive group

Anti-HCV negative group

 

Case

Control

OR a

95% CI

Case

Control

OR a

95% CI

Smoking habits

 Never smoker

13

220

1.00

 

13

1604

1.00

 

 Exsmoker

7

44

7.84

1.09–56.05

2

339

0.28

0.05–1.71

 Current smoker

23

104

9.60

1.50–61.36

14

623

1.71

0.58–5.08

Smoking period (year)

 Never smoker

13

220

1.00

 

13

1604

1.00

 

 <35

11

46

11.02

1.67–72.64

3

425

0.49

0.10–2.33

 35 or more

16

89

6.99

1.03–47.51

13

488

2.41

0.63–9.21

Smoking average number (cig/day)

 Never smoker

13

220

1.00

 

13

1604

1.00

 

 <10

0

11

—

—

1

76

1.00

0.11–8.84

 10 to 19

12

45

12.47

1.82–85.56

4

303

0.84

0.21–3.38

 20 or more

16

89

9.10

1.10–75.05

10

556

1.27

0.38–4.20

  1. aAdjusted for area, age, gender, past history of diabetes mellitus, past history of liver diseases and alcohol drinking habits.
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