Table I.

Association between the expression level of ZEB1-AS1 and clinicopathological features of patients with IHCC.

Parameters	No. of patients (n=118)	ZEB1-AS1 expression		P-value
		High (n=64)	Low (n=54)
Age				0.611
<55 years	56	29	27
≥55 years	62	35	27
Sex				0.112
Male	64	39	25
Female	54	25	29
CA19-9				0.479
<37 U/ml	57	29	28
≥37 U/ml	61	35	26
No. of tumors				0.239
Single	95	49	46
Multiple	23	15	8
Microvascular invasion				0.020
No	65	29	36
Yes	53	35	18
Encapsulation				0.612
Absent	43	22	21
Present	75	42	33
Differentiation grade				0.135
Well	46	21	25
Moderate/poor	72	43	29
Tumor size				0.201
<5 cm	58	28	30
≥5 cm	60	36	24
Lymphatic metastasis				0.036
Yes	33	23	10
No	85	41	44
TNM stage				0.037
I/II	62	28	34
III/V	56	36	20

ZEB1-AS1, lncRNA ZEB1 antisense 1; IHCC, intrahepatic cholangiocarcinoma.