Table II.

Univariate and multivariate analyses of factors in terms of overall survival.

	Univariate analysis				Multivariate analysis
		95% CI				95% CI
Factors	HR	Lower	Upper	P-value	HR	Lower	Upper	P-value
SPARCL1 (+ vs. -)	0.572	0.301	1.090	0.090	0.613	0.313	1.203	0.155
Differentiation (I vs. II&III)	0.378	0.122	1.173	0.092	0.529	0.158	1.774	0.303
Differentiation (I&II vs. III)	0.937	0.472	1.860	0.851	1.084	0.532	2.212	0.824
Duke's stage (B vs. C)	0.567	0.309	1.041	0.067	1.385	0.725	2.646	0.324

HR, hazard ratio; CI, confidence interval; SPARCL1, secreted protein acidic and rich in cysteine-like 1.