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Incidence rates of (A) spontaneous or precipitated AUR and (B) surgery in placebo- and finasteride-treated patients in the Proscar Long Term Efficacy and Safety Study stratified by prostate-specific antigen (PSA) tertiles. As the risks of AUR and surgery increase with increasing serum PSA level, the relative risk reduction with finasteride becomes greater. Data from Roehrborn CG et al. Urology. 1999;53:473–480.29
