Association Study of Single Nucleotide Polymorphisms in XRCC1 Gene with Risk of Hepatocellular Carcinoma in Chinese Han Population

Table 1

Clinical characteristics of hepatocellular carcinoma (HCC) cases and controls.

Characteristics	Cases (𝑛)	%	Controls (𝑛)	%	𝜒^2 value	𝑃 value
Number	651		663
Gender (𝑛)					0.6900	0.4062
Male	389	59.75	411	61.99
Female	262	40.25	252	38.01
Age (years)
Mean ± SD	58.69±12.45		59.17±13.22		2.8181	0.0932
<55	365	56.07	402	60.63
≥55	286	43.93	261	39.37
Alcohol drinking					2.3325	0.1267
Yes	332	51.00	366	55.20
No	319	49.00	297	44.80
Tobacco smoking					0.8282	0.3628
Yes	349	53.61	372	56.11
No	302	46.39	291	43.89
Hypertension (𝑛)					0.1742	0.6764
Yes	115	17.67	123	18.55
No	536	82.33	540	81.45
Diabetes mellitus (𝑛)					1.0300	0.3102
Yes	121	18.59	138	20.81
No	530	81.41	525	79.19
Family history of HCC (𝑛)
Yes	48	7.37	—
No	603	92.63	—
Serum a-FP levels
<400 ng/mL	206	31.64	—
>400 ng/mL	445	68.36	—
HBV serological markers (𝑛)
HBs Ag (+)	131	20.12	—
HBs Ag (−)	520	79.88	—