Table 2.

The basic characters of the study population

Factors	Control	CHB	LC	P value
	N = 173	N = 129	N = 126
Age(mean ± SD)*	37.78 ± 11.71	37.71 ± 11.55	46.55 ± 10.28	0.000
Gender**
Male	149 (86.1%)	115 (89.1%)	106 (86.4)	0.497
Femle	24 (13.9%)	14 (10.9%)	20 (13.6)
Smoking**
No	127 (73.4%)	96 (74.4)	101 (80.2)	0.373
Yes	46 (26.6%)	33 (25.6)	25 (19.8)
Alcohol**
No	121 (69.9%)	88 (68.2)	91 (70.1)	0.782
Yes	52 (30.1%)	41 (31.8)	35 (29.9)

*Student’ t test.

**Chi-square test.