Table 1: Demographic data of the subjects.

Demographic datan%

Sex
 Male545.5
 Female654.5

Age in years ( = 32)
 20–30436.4
 31–40654.5
 >4019.1

Occupation
 Employee218.2
 Government officer19.1
 University worker654.5
 Others218.2

Alcohol consumption
 Stopped drinking for >3 mo218.2
 Drinking less than once/mo763.6
 Never218.2

Smoking
 Never11100.0

Herb/vitamin supplement
 Consuming19.1
 Never1090.9