Table 2. Cox regression analysis of disease specific survival in early OSCC.

Variable	HR (95% CI)	P value
Univariate
≥ 2 hypermethylated genes	0.18 (0.04–0.75)	0.018
Multivariate model
≥ 2 hypermethylated genes	0.17 (0.04–0.70)	0.014
pN classification	4.16 (2.01–8.61)	< 0.001