Table 4. Univariate analyses of OS/RFS in patients with primary LUSC.

parameters	Univariate analysis
	Hazard.Ratio	CI95	P.value
OS
Age(>65 vs < = 65)	1.27	0.953–1.692	0.102653
Female vs Male	0.836	0.607–1.152	0.273392
Smoking history history 2/3/4/5 vs. 1	0.588	0.26–1.332	0.203431
Clinical stage III/IV vs. I/II	1.562	1.134–2.152	0.006389
CEP55 expression High vs. Low	0.814	0.595–1.113	0.197644
RFS
Age(>65 vs < = 65)	0.973	0.649–1.46	0.89667
Female vs Male	0.64	0.395–1.037	0.070149
Smoking history history 2/3/4/5 vs. 1	0.393	0.143–1.078	0.06966
Clinical stage III/IV vs. I/II	1.992	1.237–3.208	0.004581
CEP55 expression High vs. Low	1.347	0.885–2.049	0.164307