Table 3.

Results of a logistic regression model for progression.

Covariates	Log odds ratio	Odds ratio	95% CI of odds ratio	P value
Intercept	−3.543	0.029	(0.014, 0.059)	<0.001
Age at biopsy	0.017	1.017	(1.006, 1.029)	0.127
Months since last biopsy	0.016	1.016	(1.008, 1.025)	0.053
Last PSA (ng/mL)	0.044	1.045	(1.028, 1.063)	0.008
Percent cores positive for cancer on last biopsy/10	0.337	1.401	(1.301, 1.508)	<0.001
Number of prior negative biopsies
0	Ref
1 or more	−0.646	0.524	(0.417, 0.659)	0.005