Table 1: Characteristics of Subjects by smoking status.

 

 

Never smoker

(n = 6968)

Current smoker (n = 2481)

Ex-smoker

(n = 2400)

p value

Age

 

(yrs, mean)

49.61

45.87

54.15

< 0.001

BMI

(kg/m2,mean)

23.45

23.74

24.01

< 0.001

Sex

 

Female

n

5990

362

376

< 0.001

(%)

89.00%

5.40%

5.60%

Male

n

978

2119

2024

< 0.001

(%)

19.10%

41.40%

39.50%

Frequency of alcohol drinking (times/month)

 

< 2

n

3531

585

840

< 0.001

(%)

71.20%

11.80%

16.90%

≧ 2

n

1867

1798

1422

< 0.001

(%)

36.70%

35.30%

28.00%

Amount of alcohol drinking (glasses/drinking)

< 5

n

3470

703

974

< 0.001

(%)

67.40%

13.70%

18.90%

≧ 2

n

948

1522

947

< 0.001

(%)

27.70%

44.50%

27.70%

Amount of smoking

 

PYs, mean

0

19.73

17.76

< 0.001