Table 1.

Demographic data of the subjects.

Demographic data	n	%
Sex
Male	5	45.5
Female	6	54.5
Age in years ( $\stackrel{-}{x}$ = 32)
20–30	4	36.4
31–40	6	54.5
>40	1	9.1
Occupation
Employee	2	18.2
Government officer	1	9.1
University worker	6	54.5
Others	2	18.2
Alcohol consumption
Stopped drinking for >3 mo	2	18.2
Drinking less than once/mo	7	63.6
Never	2	18.2
Smoking
Never	11	100.0
Herb/vitamin supplement
Consuming	1	9.1
Never	10	90.9