Table 2. The association between these seven lncRNAs and clinical features of KIRP patients.

Factor		AFAP1–AS1	GAS6–AS1	RP11–1C8.7	RP11–21L19.1	RP11–503C24.1	RP11–536I6.2	RP11–63A11.1
Tumor stage (T3–4/T1–2)	t-test	3.737	–1.052	–3.225	–2.733	–3.244	–3.042	–4.910
	P	<0.001	0.294	0.002	0.008	0.001	0.003	<0.001
	AUC	0.369	0.550	0.654	0.641	0.647	0.626	0.695
	P	0.002	0.227	<0.001	0.001	<0.001	0.003	<0.001
Lymph node metastasis (N1/N0)	t-test	–2.965	1.540	2.146	2.290	2.017	3.392	2.117
	P	0.005	0.128	0.037	0.025	0.049	0.001	0.038
	AUC	0.332	0.601	0.662	0.681	0.647	0.724	0.642
	P	0.014	0.144	0.018	0.009	0.032	0.001	0.039
Metastasis (M1/M0)	t-test	–2.064	2.083	2.235	1.183	1.579	1.652	1.789
	P	0.070	0.040	0.053	0.240	0.118	0.102	0.077
	AUC	0.272	0.713	0.740	0.671	0.684	0.653	0.702
	P	0.024	0.035	0.018	0.090	0.069	0.131	0.046
TNM stage (III–IV/I–II))	t-test	3.365	–1.251	–2.936	–2.601	–2.587	–2.653	–5.482
	P	0.001	0.212	0.004	0.011	0.010	0.008	<0.001
	AUC	0.380	0.557	0.634	0.624	0.624	0.614	0.710
	P	0.004	0.171	0.001	0.003	0.003	0.006	<0.001
Cancer status (with tumor/tumor free)	t-test	–3.058	3.308	3.451	2.790	3.520	3.982	4.384
	P	0.003	0.001	0.001	0.007	0.001	<0.001	<0.001
	AUC	0.361	0.661	0.661	0.649	0.670	0.675	0.705
	P	0.048	0.001	0.001	0.001	<0.001	<0.001	<0.001