Comparison of percutaneous radiofrequency ablation and CyberKnife® for initial solitary hepatocellular carcinoma: A pilot study

Table 1 Patient characteristics

Variable	RFA (n = 38)	CyberKnief® (n = 35)	P value
Observation period	561 (range 222-1223)	379 (range 203-1065)	0.15
Age (yr), mean ± SD	68.7 ± 10.5 (range 42-86)	75.1.7 ± 8.1 (range 55-89)	0.005
Gender			0.82
Male/female	27/11	24/11
Etiology			0.32
HBV/HCV/alchol/other	9/18/3/8	4/23/1/7
Child-Push classification, A/B	31/7	28/7	0.86
Tumor size	17.5 ± 6.1 (range 7-29)	28.6 ± 11.5 (range 12-50)	0.001

P < 0.05, statistical significant. RFA: Radiofrequency ablation; HBV: Hepatitis B virus; HCV: Hepatitis C virus.