The patient-perceived intravaginal ejaculation latency time cut-off for lifelong premature ejaculation

Area of Science:

• Urology
• Sexual Medicine
• Clinical Diagnostics

Background:

• Current diagnostic criteria for lifelong premature ejaculation (PE) using intravaginal ejaculation latency time (IELT) lack consistency and clinical applicability.
• Inconsistent IELT cutoffs challenge effective clinical management and research in premature ejaculation.

Purpose of the Study:

• To re-evaluate IELT and establish evidence-based cutoff values for diagnosing lifelong PE.
• To identify a widely acceptable IELT cutoff that aligns with current clinical practice.

Main Methods:

• Diagnosed lifelong PE using patient self-reports and the Premature Ejaculation Diagnostic Tool (PEDT).
• Included a control group of individuals without PE for comparison.
• Employed receiver operating characteristic (ROC) curve analysis to determine the optimal IELT cutoff.

Main Results:

• Study included 307 participants: 187 with lifelong PE and 120 controls.
• ROC analysis identified an optimal perceived IELT cutoff of 3.5 minutes (sensitivity 97.9%, specificity 99.2%).
• This 3.5-minute cutoff captures 97.9% of lifelong PE patients seeking medical help.

Conclusions:

• A perceived IELT cutoff of 3.5 minutes is proposed for diagnosing lifelong PE in clinical settings.
• This revised cutoff value improves diagnostic accuracy and clinical relevance for premature ejaculation.