Table 4.

Univariate analysis of clinicopathological variables associated with overall survival.

Variable	Before PSM			After PSM
	n	5-year OS (%)	P	n	5-year OS (%)	P
Age, years			0.285			0.261
≤ 60	697	61.3		411	62.6
> 60	116	53.8		59	52.9
Gender			0.907			0.874
Male	717	60.7		414	61.2
Female	96	57.2		56	61.8
Etiology			0.380			0.288
Hepatitis B/C	751	59.7		441	60.8
Other	62	66.1		29	67.7
Alanine aminotransferase, U/L			0.678			0.724
≤ 40	509	59.3		275	59.3
> 40	304	61.4		195	63.6
Portal hypertension			< 0.001			< 0.001
Absent	579	68.2		345	69.9
Present	234	40.8		125	37.4
Child–Pugh grade			< 0.001			0.001
A	764	60.8		453	62.4
B	49	51.0		17	37.6
AFP, ng/mL			< 0.001			0.031
≤ 400	521	65.8		278	67.1
> 400	292	50.1		192	52.7
Tumor size, cm			0.002			0.027
≤ 5	464	61.5		235	62.8
> 5	349	59.9		235	60.2
Extent of hepatectomy			0.081			0.067
Minor hepatectomy	713	60.6		460	61.7
Major hepatectomy	100	60.2		10	31.1
Intraoperative blood transfusion			0.001			0.012
No	662	62.4		393	63.7
Yes	151	50.2		77	47.9
Histological severity of cirrhosis			< 0.001			< 0.001
Mild cirrhosis	376	73.0		230	73.4
Moderate/severe cirrhosis	437	48.1		240	49.4
Microvascular invasion			< 0.001			0.028
Absent	675	62.3		382	63.8
Present	138	48.6		88	48.2
Tumor differentiation			< 0.001			< 0.001
Well	179	76.9		83	79.1
Moderate/poor	634	55.2		387	57.5

PSM propensity score matching, OS overall survival, AFP alpha-fetoprotein.