Table 4. Univariate and multivariate Cox regression analysis for DFS in patients with OSCC.

Variables	Univariate analysis			Multivariate analysis
	P value	HR	95% CI	P value	HR	95% CI
Age (years)	0.093	1.017	0.997, 1.036	0.071	1.018	0.999, 1.037
Gender	0.627	1.132	0.687, 1.867	0.678	1.113	0.672, 1.841
Grade	0.817	1.043	0.732, 1.485	0.533	1.125	0.777, 1.627
Stage	0.625	1.064	0.830, 1.363	0.482	0.852	0.545, 1.332
N	0.539	1.085	0.7837, 1.407	0.167	1.286	0.900, 1.836
T	0.191	1.167	0.926, 1.470	0.295	1.134	0.896, 1.434
AC012456.4	0.004	0.601	0.423, 0.853	0.004	0.600	0.423, 0.851