Table 1. Univariate and multivariate analysis for death from prostate cancer.

	Univariate analysis				Multivariate analysis
Variable	N	χ2 (1 df)	Hazard ratio (95% CI)	P-value	N	χ2 (1 df)	Hazard ratioa (95% CI)	P-value
CCP score	349	37.6	2.02 (1.62, 2.53)	8.6 × 10−10	349	17.7	1.65 (1.31, 2.09)	2.6 × 10−5
Gleason score
<7	106	36.4	0.46 (0.25, 0.86)	1.6 × 10−9	106	12.1	0.61 (0.32, 1.16)	5.0 × 10−4
7	152		1 (ref)		152		1 (ref)
>7	91		2.70 (1.72, 4.23)		91		1.90 (1.18, 3.07)
log (1+PSA) (ng ml−1)	349	16.8	1.70 (1.31, 2.20)	4.2 × 10−5	349	5.7	1.37 (1.05, 1.79)	0.017
Extent of disease b
<50%	69	14.1	0.50 (0.22, 1.12)	0.0002
50–<100%	106		1 (ref)
100%	160		1.66 (1.01, 2.73)
Age at diagnosis (years)	349	0.05	1.00 (0.96, 1.04)	0.82
Clinical stage
T1	38	3.72	0.75 (0.32, 1.75)	0.054
T2	106		1 (ref)
T3	43		1.74 (0.90, 3.38)
Hormone use
No	200	10.2	1 (ref)	0.001
Yes	149		1.97 (1.30, 2.98)

Abbreviations: χ²=chi-square; df=degrees of freedom; CI=confidence interval; ref=reference category; PSA=prostate-specific antigen.

^aGleason score assessed with 2df for computing the hazard ratios in the multivariate analysis.

^bProportion of positive cores.