Single Nucleotide Polymorphisms of CBX4 and CBX7 Decrease the Risk of Hepatocellular Carcinoma

Table 1

Distributions of general demographic characteristics and environmental risk factors in cases and controls.

Characteristics	Cases (n = 334)	%	Controls (n = 321)	%	P-value
Age (years)	49.1 ± 10.87	-	49.31 ± 12.06	-	0.82
Gender					0.25
Male	279	83.53	257	80.06
Female	55	16.47	64	19.94
Smoking habit					0.001
Yes	120	35.93	36	11.21
No	214	64.07	285	88.79
Alcohol intake					0.001
Yes	116	34.73	33	10.28
No	218	65.27	288	89.72
HBsAg					0.001
Positive	273	81.74	37	11.53
Negative	61	18.26	284	88.47
Family history					0.001
Yes	85	25.45	3	0.94
No	249	74.55	318	99.06

Bold values indicate statistical significance. a: the ages of the patient subjects were represented as Mean ± SD. b: since the positive rate in the control group was extremely low, we did not include this factor in the logistic regression models in order to avoid causing model bias.