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Sexual function reported by Japanese and American men
Shunichi Namiki1, Lorna Kwan, Marjorie Kagawa-Singer
1Department of Urology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, California 90095-1738, USA.
Japanese men with prostate cancer reported worse sexual function but less bother than American men. Cultural differences in survey responses likely explain these findings in sexual health outcomes.
Area of Science:
- Oncology
- Urology
- Cross-cultural Health Research
Background:
- Localized prostate cancer affects men globally, with significant impacts on quality of life.
- Sexual function and bother are crucial aspects of survivorship care following prostate cancer treatment.
Purpose of the Study:
- To conduct a cross-cultural comparison of sexual function and bother in men with localized prostate cancer between the United States and Japan.
- To identify potential cultural influences on self-reported sexual health outcomes in this patient population.
Main Methods:
- A total of 447 Japanese and 427 American men with localized prostate cancer were analyzed.
- Sexual function and bother were assessed using validated English and Japanese versions of the UCLA Prostate Cancer Index prior to treatment.
Main Results:
- Japanese men reported significantly higher rates of poor sexual desire, erection ability, overall sexual function, orgasm, erection quality, and sexual activity frequency compared to American men.
- Conversely, Japanese men were significantly less bothered by sexual function issues than American men.
- A small cohort of Japanese-American men exhibited sexual function profiles more aligned with Japanese men.
Conclusions:
- Cultural disparities in completing quality of life surveys may explain the observed differences in sexual activity profiles.
- These findings highlight the importance of considering cultural context when assessing sexual health outcomes in prostate cancer patients.
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