Table 5.

Multivariate Cox regression analysis of overall and disease-specific survival in the cohort of 348 OSCC patients.

Variables	Overall survival		Disease-specific survival
	HR (95% CI)	p	HR (95% CI)	p
Age
≤65 years	1 (reference)	0.017
>65 years	1.498 (1.095 – 2.051)
Stage		< 0.0001		< 0.0001
I	1 (reference)		1 (reference)
II	1.459 (0.956 – 2.227)	0.08	1.470 (0.855 – 2.526)	0.16
III	2.140 (1.255 – 3.649)	0.005	2.690 (1.399 – 5.170)	0.003
IV	3.708 (2.290 – 6.002)	<0.0001	5.112 (2.873 – 9.095)	<0.0001
Radiotherapy
No	1 (reference)	< 0.0001	1 (reference)	< 0.0001
Yes	1.431 (1.212– 1.689)		1.598 (1.313 – 1.945)
NLR
≤4.08	1 (reference)	0.04
>4.08	1.626 (1.004 – 2.633)