研究者情報

キクチ　エイジ   KIKUCHI EIJI   菊地栄次    所属   医学部医学科 腎泌尿器外科学    職種   主任教授
言語種別	日本語
発表タイトル	Investigation of the prevalence and risk factors of delayed ejaculation: Insights from a nationwide internet-based survey on male sexual dysfunction in Japan
会議名	第112回日本泌尿器科学会総会
学会区分	全国規模の学会
発表形式	口頭
講演区分	一般
発表者・共同発表者	Shirai Masato, Kikuchi Eiji, Kimura Kazunori, Sasaki Haruaki, Sato Yoshikazu, Chiba Koji, Tomoe Hikaru, Nagai Atsushi, Nagao Koichi, Yoshizawa Tsuyoshi, Fukuhara Shinichiro, Maeda Eri, Tsujimura Akira
発表年月日	2025/04/19
開催地 （都市, 国名）	福岡県福岡市
開催期間	2025/04/17～2025/04/19
概要	[Objective] Delayed ejaculation (DE) is presumed to have a lower prevalence compared to erectile dysfunction (ED) and premature ejaculation (PE), but its prevalence in Japan has not been studied. This nationwide survey, led by the Clinical Research Promotion Committee of the Japanese Society for Sexual Medicine (JSSM), aimed to investigate the prevalence and risk factors of DE in Japanese men. [Methods] The survey was conducted via an internet-based platform, provided by a company maintaining a general population panel, ensuring minimal bias. [Results] A total of 37,485 men were invited to participate between May 29 and June 24, 2023, and 6,228 valid responses were obtained (response rate: 16.61%). Analysis focused on 5,331 men who confirmed sexual activity. The prevalence of DE-related distress was 7.78%. Univariate analysis identified significant risk factors, including ED, marriage, having children, phimosis, age, frequency of intercourse and masturbation, obesity, hypertension, dyslipidemia, smoking history, chronic kidney disease, lower urinary tract symptoms, neurological diseases, trauma, pelvic surgery, aortic aneurysm surgery, psychological and psychiatric factors, and sleep apnea. Of those distressed by DE, 44.34% desired treatment, but only 7.71% had sought medical help. [Conclusions] This is the first nationwide DE survey in Japan, showing a lower prevalence compared to ED and PE. Risk factors for DE overlap with ED. Although many desire treatment, only about 17% actually seek help.