TABLE 4.

Results of univariate and multivariate Cox regression.

	Univariate analysis		Multivariate analysis
	HR (95% CI)	p value	HR (95% CI)	p value
Race	0.787 (0.305–2.03)	0.62
Age	0.998 (0.945–1.053)	0.931
Pathological N	1.366 (0.643–2.903)	0.417
Pathological T	4.279 (1.364–13.426)	0.013	1.113 (0.308–4.018)	0.87
Gleason grade	2.143 (1.42–3.235)	<0.001	1.792 (1.129–2.844)	0.013
Prior malignancy	0.767 (0.104–5.638)	0.794
Diagnostic CT or MRI	1.38 (0.954–1.996)	0.087
Residual tumor	1.272 (0.897–1.806)	0.177
PSA	1.012 (0.991–1.034)	0.255
Risk score	3.423 (1.862–6.293)	<0.001	2.099 (1.043–4.224)	0.038

PSA, prostate-specific antigen; and p < 0.05 is defined as statistically significant.