RELATIONSHIPS BETWEEN INTRAVAGINAL EJACULATORY LATENCY TIME AND NATIONAL INSTITUTES OF HEALTH-CHRONIC PROSTATITIS SYMPTOM INDEX IN THE FOUR TYPES OF PREMATURE EJACULATION SYNDROMES: A LARGE OBSERVATIONAL STUDY IN CHINA

IntroductionBesides lifelong premature ejaculation (LPE) and acquired premature ejaculation (APE), Waldinger and Schweitzer proposed two addition PE syndromes (variable PE [VPE] and subjective PE [SPE]). AimWe assessed the associations between intravaginal ejaculatory latency time (IELT) and National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) in men with different PE syndromes. MethodsFrom September 2011 to September 2012, a total of 4,000 men were enrolled from the Anhui province of China. Subjects were required to complete a verbal questionnaire, including demographic information, medical and sexual history (e.g., IELT), and self-estimated scales (e.g., NIH-CPSI). Main Outcome MeasuresIELT; NIH-CPSI; the new classification of PE syndromes. ResultsOf 3,016 of the men evaluated, 25.80% complained of PE. Distribution of the four PE syndromes among men with complaints of PE was as follows: LPE, 12.34%; APE, 18.77%; VPE, 44.09%; and SPE, 24.81%. Men with complaints of PE reported worse NIH-CPSI scores and lower IELT than men without complaints of PE (P<0.001 for all). Moreover, total and subdomain scores of NIH-CPSI were higher in men with APE, and IELT was higher in men with SPE. IELT was negatively associated with NIH-CPSI scores in men with complaints of PE. Negative relationships between total and subdomain scores of NIH-CPSI and IELT were stronger in men with APE (total scores: adjusted r=-0.68, P<0.001; pain symptoms: adjusted r=-0.70, P<0.001; urinary symptoms: adjusted r=-0.67, P<0.001; quality of life impact: adjusted r=-0.64, P<0.001). ConclusionMen with complaints of PE reported worse NIH-CPSI scores than men without complaints of PE. Relationships between IELT and NIH-CPSI scores were strongest in men with APE. Gao J, Xu C, Liang C, Su P, Peng Z, Shi K, Tang D, Gao P, Lu Z, Liu J, Xia L, Yang J, Hao Z, Zhou J, and Zhang X. Relationships between intravaginal ejaculatory latency time and National Institutes of Health-Chronic Prostatitis Symptom Index in the four types of premature ejaculation syndromes: A large observational study in China. J Sex Med 2014;11:3093-3101.