The purpose of this study is to evaluate the effectiveness of the three most established primary treatments for patients with clinically localized prostate cancer (radical prostatectomy, external-beam radiotherapy, and prostate brachytherapy) at short, mid and long-term follow-up. The primary aim is assessing Quality of Life impact of treatments' side effects. As secondary objectives biochemical disease-free survival, overall survival, and prostate cancer-specific survival will be also assessed.
Inclusion Criteria: * Stage T1 or T2, treated with radical retropubic prostatectomy, external beam radiotherapy, or interstitial brachytherapy Exclusion Criteria: * Previous prostate transurethral resection * Treated in other hospitals out of the participating centers