Table 2.

The comparison of survival rates of 300 patients with malignant liver tumor after RFA

	Survival rate
Tumor type	1 yr	2 yr	3 yr
MLC (n = 125)	75.3	50.2	25.1
HCC (n = 175)b	84.6	66.6	63.1
Stages I–II (n = 48)bd	93.7	80.4	80.4
Stages III–IV (n = 127)a	81.3	61.7	57.2
Total (n = 300)	80.6	60.1	50.4

^aP<0.05,

^bP<0.01 vs MLC;

^dP<0.01 vs HCC of stages III–IV , P<0.01.