Efficacy and safety of computed tomography-guided microwave ablation with fine needle-assisted puncture positioning technique for hepatocellular carcinoma

Table 3 Factors associated with recurrence-free survival

Factors	Univariate analysis		Multivariate analysis
	HR (95%CI)	P value	HR (95%CI)	P value
Sex	0.547 (0.170, 1.764)	0.313
Age (yr): > 60; 60	1.021 (0.590, 1.767)	0.942
ECOG PS: 0; 1	1.831 (1.008, 3.325)	0.047	1.609 (0.878, 2.948)	0.124
Tumor number: 1; 2-3	3.692 (2.112, 6.456)	< 0.001	3.910 (2.195, 6.966)	< 0.001
AFP (ng/mL): < 400; ≥ 400	0.606 (0.218, 1.682)	0.336
Tumor size (cm): < 3; 3-5	1.491 (0.841, 2.642)	0.171
Auxiliary TACE pre-MWA: Yes; No	0.947 (0.504, 1.780)	0.867
Tumor location: HRL; LRL	1.060 (0.789, 1.424)	0.699
Puncture method: FNP technique; CP technique	2.078 (1.196, 3.612)	0.009	2.484 (1.415, 4.359)	0.002

AFP: Alpha-fetoprotein; CP: Conventional puncture; ECOG PS: Eastern Cooperative Oncology Group performance status rating; FNP: Fine needle-assisted puncture positioning; HRL: High-risk location; LRL: Low-risk location; MWA: Microwave ablation; TACE: Transarterial chemoembolization.