Laparoscopic resection vs laparoscopic radiofrequency ablation for the treatment of small hepatocellular carcinomas: A single-center analysis

Table 2 Cox proportional hazard regression for overall survival and disease-free survival

Variables	β	HR (95%CI)	P value
Overall survival
Treatment (LRFA)	0.812	2.252 (0.983-5.156)	NS
Sex (Male)	0.073	1.076 (0.426-2.717)	NS
Age	0.008	1.008 (0.961-1.059)	NS
Diagnosis (HCV)	0.828	2.288 (0.624-8.382)	NS
Preop TACE (Yes)	0.500	1.649 (0.737-3.689)	NS
No. intraop. nodules	0.800	2.225 (1.594-3.108)	< 0.001
Local recurrence (Yes)	-0.014	0.985 (0.414-2.345)	NS
Dist. recurrence (Yes)	1.543	4.680 (0.618-35.440)	NS
Disease-free survival
Treatment (LRFA)	0.464	1.590 (0.771-3.282)	NS
Sex (Male)	0.587	1.798 (0.732-4.422)	NS
Age	-0.019	0.980 (0.939-1.024)	NS
Diagnosis (HCV)	-0.300	0.740 (0.275-1.993)	NS
Preop TACE (Yes)	0.125	1.133 (0.549-2.340)	NS
No. intraop. nodules	0.216	1.241 (0.946-1.628)	NS

The square brackets show the target code selected for each categorical variable. β: Regression coefficient; LRFA: Laparoscopic radiofrequency ablation; HCV: Hepatitis C virus; TACE: Transarterial chemoembolization; NS: Not significant.