. Author manuscript; available in PMC: 2014 Jul 3.

Published in final edited form as: Mod Pathol. 2011 Oct 7;25(2):260–271. doi: 10.1038/modpathol.2011.146

Table 4.

Multivariate analysis in predicting overall survival

Variables	Hazard ratio	95% CI	P-value
Age (>65 vs ≤65) (years)	1.26	0.95–1.67	0.105
Laterality (right vs left)	1.36	1.01–1.83	0.046
Stages (III–IV vs I–II)	1.39	0.99–1.94	0.152
Lymphatic invasion	1.50	1.09–2.08	0.014
Vascular invasion	0.88	0.57–1.37	0.578
Nuclear grade (II vs I)	2.11	1.52–2.94	<0.001
Nuclear grade (III vs II)	4.16	2.47–7.03	<0.001

CI, confidence interval.