. 2015 Apr 1;8(4):4033–4043.

Table 1.

Relationship between Epo/EpoR and clinicopathologic characteristics/VM formation of patients with HCC

Variables	Epo		x²	P	EpoR		x²	P

	Negative	Positive			Negative	Positive
Ages (year)
< 50	11	11	1.434	0.231	10	12	0.262	0.609
≥ 50	45	25	1.434	0.231	26	44	0.262	0.609
Sex
Male	48	31	0.003	0.957	29	50	1.376	0.241
Female	8	5	0.003	0.957	7	6	1.376	0.241
Tumor size (cm)
> 5	18	22	7.483	0.006^*	14	26	0.507	0.467
≤ 5	38	14	7.483	0.006^*	22	30	0.507	0.467
Histological differentiation
I/II	34	12	6.571	0.010^*	23	23	4.563	0.033^*
III/IV	22	24	6.571	0.010^*	13	33	4.563	0.033^*
Stage
I/II	19	24	9.435	0.002^*	23	20	6.988	0.008^*
III/IV	37	12	9.435	0.002^*	13	36	6.988	0.008^*
Metastasis
Yes	11	18	9.335	0.002^*	9	20	1.165	0.280
No	45	18	9.335	0.002^*	27	36	1.165	0.280
VM
Positive	5	12	8.664	0.003^*	3	14	4.041	0.044^*
Negative	51	24	8.664	0.003^*	33	42	4.041	0.044^*

Significantly different.