 The goal of this project is to incorporate patients preferences into a previously developed prostate cancer treatment decision-model and to understand the implications for doing so for cost-effectiveness analysis. To do this, it is first necessary to obtain patient utility scores i.e., patient preference weights. To do this we will perform a survey of patients visiting the urology clinic to undergo prostate biopsies to validate a method of utility assessment, and understand the patients individual evaluations of treatment-related health studies. We will also ask patients questions relating to their anxiety levels concerning the possible diagnosis of prostate cancer. 