Table 2.

Univariate Cox proportional hazards regression analysis in relation to overall survival of the 57 OSCC patients

	Overall survival
Variable	P value	Hazard ratio	95 % CI
Neck node	<0.001*	6.795	2.745–16.817
Histological grade	0.003*	12.271	2.336–64.465
Tumor stage	0.009*	3.718	1.385–9.980
NANOG	0.019*	4.494	1.275–15.839
Mutant p53	0.016*	3.747	1.279–10.977
CD44	0.263	2.315	0.532–10.097
NANOG + p53	0.028*	0.741	0.217–2.531

Abbreviation: CI confidence interval

*Statistically significant (p < 0.05)