Table 1. Distribution of selected demographic variables and risk factors in HCC cases and controls.

Variable	HCC cases (n=584)		Healthy controls (n=923)		P1
	n	%	n	%
Age (years)	53.17 (±11.76)		53.72 (±9.97)		0.327
Age (years)					0.358
<53	264	45.21	395	42.80
≥53	320	54.79	528	57.20
Sex					0.717
Male	525	89.90	835	90.47
Female	59	10.10	88	9.53
Smoking status					0.834
Never	374	64.04	596	64.57
Ever	210	35.96	327	35.43
Alcohol use					<0.001
Never	414	70.89	775	83.97
Ever	170	29.11	148	16.03
Chronic HBV infection					<0.001
Yes	412	70.55	85	9.21
No	172	29.45	838	90.79

Bold values are statistically significant (P<0.05).

¹Two-sided χ² test and Student’s t test.