Table 4.

Survival of patients by treatment group and tumor size (after PSM).

	0–20 mm			21–30 mm			31–50 mm
Size group%	RFA%	HR%	p	RFA%	HR%	p	RFA%	HR%	p
FOR PATIENTS AGED >65
3-years OS	72.82	73.63	0.47	65.46	72.70	0.03	50.25	71.17	<0.001
5-years OS	64.62	63.19		56.55	63.50		40.30	62.93
3-years DSS	85.64	84.62	0.56	79.94	83.68	0.09	60.45	77.80	<0.001
5-years DSS	82.05	81.87		74.93	78.34		53.48	72.08
FOR PATIENTS AGED ≤65
3-years OS	74.34	79.14	0.005	69.82	78.77	<0.001	53.48	72.09	<0.001
5-years OS	66.47	72.09		61.19	70.90		46.35	64.70
3-years DSS	83.38	88.65	0.002	82.14	85.12	0.02	63.28	77.34	<0.001
5-years DSS	77.55	84.36		76.18	79.65		57.58	71.10

HR, hepatic resection; RFA, radiofrequency ablation; OS, overall survival; DSS, disease-specific survival; PSM, propensity score matching.