Table 3. Clinical features of the high-risk group and low-risk group.

Feature	Variables	High-risk group	Low-risk group	t/χ2	p
Sex
	Male	135	124	0.040	0.442
	Female	53	58
Stage
	i	76	95	-0.052	0.321
	ii	50	35
	iii	50	35
	iv	1	4
	Unknown	11	13
	AFP	11,005.88±40,623.11	16,927.47±172,443.99	-0.391	0.696
Fibrosis
	None	22	32	-0.074	0.155
	Portal fibrosis	18	13
	Fibrous septa	12	16
	Nodular formation	5	4
	Established cirrhosis	33	36
	Unknown	98	81
Hepatitis
	HBV	94	89	-0.031	0.550
	HCV	14	18
	HBV+HCV	34	44
	No hepatitis	46	31
Radiation
	Without	115	124	-0.074	0.157
	With	2	2
	Unknown	71	56
Surgical method
	Lobectomy	77	64	0.042	0.421
	Single segmentectomy	42	45
	Multiple segmentectomy	43	44
	Extended Lobectomy	10	15
	Other	16	14
Ablation
	Without	114	118	3.696	0.158
	With	4	9
	Unknown	70	55
Vascular invasion
	Without	109	110	2.079	0.354
	With	50	53
	Unknown	29	19

AFP, alpha-fetoprotein; HBV, hepatitis B virus; HCV, hepatitis C virus.