Table III.

Univariate and multivariate analysis of relative factors for overall survival.

		Univariate analysis		Multivariate analysis
Variable	Subgroup	HR	P-value	HR	P-value
Sex	Male vs. female	0.897	0.612
Age, years	≤65 vs. >65	1.747	0.007a	1.515	0.071
HBV	Yes vs. no	0.642	0.032a	0.769	0.582
HCV	Yes vs. no	1.812	0.010a	0.922	0.876
Liver cirrhosis	Yes vs. no	0.799	0.248
ALT, IU/l	≤40 vs. >40	0.896	0.514
AST, IU/l	≤40 vs. >40	0.804	0.219
Total bilirubin, µmol/l	≤19 vs. >19	1.222	0.234
Serum albumin, g/l	≤35 vs. >35	1.296	0.172
Prothrombin time, sec	≤15 vs. >15	0.731	0.082	0.948	0.795
Platelet count 109 cells/l	≤100 vs. >100	1.408	0.041a	1.216	0.333
Ascites	Absent vs. present	1.201	0.458
Child-Pugh	A vs. B	1.473	0.070	1.28	0.277
AFP, ng/ml	≤400 vs. >400	1.105	0.636
Tumor size, cm	≤3 vs. >3	1.404	0.051	1.589	0.012a
Tumor number	Single vs. multiple	0.509	0.001a	0.607	0.028a
Intervention	RES vs. MWA	0.673	0.019a	0.687	0.034a

^aP<0.05. HR, hazard ratio; HBV, hepatitis B virus; HCV, hepatitis C virus.