<b><i>Purpose:</i></b> This study aimed to investigate the relationships between intravaginal ejaculatory latency time (IELT), severity of disease, and chronotype in lifelong premature ejaculation (PE). <b><i>Materials and Methods:</i></b> Evaluation was made of 114 males with PE and 103 healthy individuals, and comparisons were made of self-estimated IELT, Arabic Index of Premature Ejaculation (AIPE), Pittsburg Sleep Quality Index (PSQI), and Morningness-Eveningness Questionnaire (MEQ). <b><i>Results:</i></b> The frequency of morningness chronotype (78.1%) was significantly higher, and Morningness-Eveningness Questionnaire (MEQ) scores were negatively correlated with both IELT (<i>r</i> = −0.490, <i>p</i> < 0.001) and Arabic Index of Premature Ejaculation (AIPE) scores (<i>r</i> = −0.639, <i>p</i> < 0.001) in the PE group. MEQ scores significantly predicted IELT (<i>t</i> = −2.465, <i>p</i> = 0.015) and AIPE scores (<i>t</i> = −4.003, <i>p</i> = 0.000) in the PE group but not in the control group. <b><i>Conclusion:</i></b> It can be asserted that morningness chronotype is more common, and ejaculatory latency time and PE severity are associated with chronotype in males with PE.
Effects of vardenafil administration on intravaginal ejaculatory latency time in men with lifelong premature ejaculation
