Table 3. Multivariate Cox regression analyses of the lncRNA biomarkers associated with prognosis in PTC.

Variables		Multivariate analysis
		HR	95% CI of HR	P value
Training dataset (n=261)
lncRNA signature score	High/low	1.131	1.01-1.267	0.034
Age		1.722	0.164-18.028	0.65
Stage	III, IV/I, II	0.704	0.064-7.727	0.774
Gender	Male/female	3.424	1.432-8.191	0.006
Testing dataset (n=246)
lncRNA signature score	High/low	1.151	1.076-1.231	P<0.001
Age		0.673	0.156-2.893	0.594
Stage	III, IV/I, II	0.818	0.1628-4.111	0.807
Gender	Male/female	1.315	0.26-6.652	0.74