Eight key long non-coding RNAs predict hepatitis virus positive hepatocellular carcinoma as prognostic targets

Table 1 Stratified overall survival analysis

Characteristic	Overall survival
	High-risk/low-risk	HR (95%CI)	P value
Overall	75/74	5.360 (3.012-9.538)	<0.001
Age (yr)
≤65	45/50	4.962 (2.361-10.428)	<0.001
>65	29/25	5.512 (2.174-13.980)	<0.001
Gender
Male	51/49	5.324 (2.628-10.789)	<0.001
Female	23/26	5.509 (2.023-15.003)	0.001
Race
White	38/47	7.473 (3.259-17.137)	<0.001
Asian	30/28	4.032 (1.774-9.164)	0.001
Grade
I/II	45/57	4.959 (2.492-9.869)	<0.001
III/IV	29/18	5.033 (1.721-14.717)	0.003
Stage
I/II	45/47	11.154 (3.882-32.049)	<0.001
III/IV	29/28	3.398 (1.652-6.988)	0.001

HR: Hazard ratio; CI: Confidence interval.

Table 2 Cox regression analysis for the overall survival-related clinicopathological features

Variable	Multivariate analysis
	HR	95%CI	P value
Risk_score	1.944	1.613-2.343	2.94e-12
Age	1.004	0.986-1.023	0.662
Gender	0.832	0.480-1.442	0.512
Race	1.531	1.005-2.330	0.047
Grade	1.018	0.702-1.477	0.925
Stage	1.584	1.167-2.151	0.003

HR: Hazard ratio; CI: Confidence interval.