Preoperative sexual status of Japanese localized prostate cancer patients: comparison of sexual activity and EPIC scores.

<bold>Objective: </bold>This study aimed to evaluate the relationship between sexual activity and sexual function using questionnaires distributed to middle-aged Japanese patients with localized prostate cancer.<bold>Methods: </bold>A total of 145 patients who underwent radical prostatectomy were enrolled in the survey reported on herein. Sexual activity and sexual function were investigated via the Expanded Prostate Cancer Index Composite (EPIC) and an original self-reported questionnaire.<bold>Results: </bold>Of participants, 24.1% and 20.7% had sexual activity within a month period as investigated via the EPIC and original questionnaire, respectively. However, 29.7% of all those who reported sexual activity rate reported "about once every 2 months to a year," as shown in the original questionnaire. Regarding sexual function as addressed through EPIC, no results within that questionnaire's measure of sexual function showed significant differences among patients with a rate of actual sexual activity.<bold>Conclusions: </bold>The present survey showed that more than quarter of preoperative middle-aged Japanese prostate cancer patients surveyed had actual sexual activity, though not within the preceding 4 weeks. To precisely evaluate sexual function of middle-aged Japanese patients, it is necessary to consider actual sexual activity. [ABSTRACT FROM AUTHOR]