Skp2 expression unfavorably impacts survival in resectable esophageal squamous cell carcinoma

Table 2 Results of multivariate analyses of overall survival by Cox regression model

Variables	RR		95% CI	p
		Negative	Positive
Age (≤60 vs. > 60)	0.950	0.639	1.413	0.799
Gender (male vs. female)	1.592	0.924	2.741	0.094
Cell differentiation (G1-2 vs. G3)	0.594	0.395	0.892	0.012
T categories (T1-2 vs. T3-4)	0.612	0.390	0.961	0.033
N categories (N0 vs.N1-3)	0.357	0.237	0.537	<0.01
Skp2 expression (negative vs. positive)	0.627	0.418	0.941	0.024

RR, relative risk; CI, confidence interval, G1, well differentiated; G2, moderately differentiated; G3, poorly differentiated.

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