A novel prognostic model predicting the long-term cancer-specific survival for patients with hypopharyngeal squamous cell carcinoma

Table 2 Univariate Cox proportional regression of each factors’ value in predicting CSS

	Bate value	HR	95%CI of HR	P value
Age (Continuous variable)	0.010	1.011	1.003–1.018	0.006
Sex
Female vs. Male	−0.154	0.858	0.699–1.052	0.141
Race
White vs. Black	−0.361	0.697	0.578–0.840	< 0.001
Other vs. Black	−0.347	0.706	0.512–0.975	0.034
Grade
Grade III-IV vs. Grade I-II	0.000	1.000	0.843–1.188	0.997
AJCC Stage
II vs. I	0.928	2.529	0.981–6.519	0.055
III vs. I	1.400	4.055	1.648–9.978	0.002
IV vs. I	2.009	7.457	3.091–17.988	< 0.001
T stage
T2 vs. T1	0.539	1.715	1.195–2.460	0.003
T3 vs. T1	1.072	2.922	2.037–4.191	< 0.001
T4 vs. T1	1.313	3.717	2.613–5.287	< 0.001
N stage
N1 vs. N0	0.176	1.193	0.924–1.540	0.176
N2 vs. N0	0.494	1.639	1.341–2.002	< 0.001
N3 vs. N0	0.826	2.284	1.666–3.131	< 0.001
M stage
M1 vs. M0	1.259	3.523	2.861–4.338	< 0.001
Surgery
Yes vs. No	−0.416	0.660	0.533–0.816	< 0.001
Radiotherapy
Yes vs. No	−1.044	0.352	0.297–0.418	< 0.001
Chemotherapy
Yes vs. No	−0.389	0.678	0.576–0.797	< 0.001

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