Table 6.

Univariate analysis and multivariate analysis of the correlation between the risk score calculated by the clinical prognosis model and OS.

	Univariate analysis		Multivariate analysis
Clinicopathologic	HR (95%CI)	p-value	HR (95%CI)	p-value
Age	1.00 (0.97–1.02)	0.765
Gender	0.85 (0.45–1.60)	0.616
Grade	2.86 (1.72–4.75)	<0.001	1.49 (0.84–2.65)	0.174
Stage	1.90 (1.44–2.51)	<0.001	0.67 (0.20–2.25)	0.520
T	2.31 (1.56–3.41)	<0.001	2.01 (0.62–6.47)	0.242
M	3.79 (1.91–7.52)	<0.001	5.14 (0.872–30.35)	0.071
N	4.47 (1.31–15.19)	0.016	2.64 (0.66–10.66)	0.712
Risk score	2.50 (1.64–3.83)	<0.001	2.20 (1.33–3.63)	0.002

Bold values indicate P <0.05. HR, hazard ratio; CI, confidence interval. T, Tumor; N, Node; M, Metastasis.