title: Premature ejaculation: an observational study of men and their partners.
abstract: BACKGROUND
  Premature ejaculation (PE) is the most common male sexual dysfunction affecting men and their partners. Lack of community-based data describing this condition limits understanding of PE and its outcomes.
  
  
  OBJECTIVE
  To characterize PE in a large population of men with and without PE using patient-reported outcome (PRO) measures elicited from men and their partners.
  
  
  METHODS
  4-week, multicenter, observational study of males (> or =18 years) and their female partners in monogamous relationships (> or =6 months). Screening, baseline, and follow-up visits scheduled at 2-week intervals. Clinicians diagnosed PE utilizing DSM-IV-TR criteria. Intravaginal ejaculatory latency time (IELT), measured by a stopwatch held by the partner, was recorded for each sexual intercourse experience. Subject and partner independently assessed PROs: control over ejaculation and satisfaction with sexual intercourse (0 = very poor to 4 = very good), personal distress and interpersonal difficulty (0 = not at all to 4 = extremely), and severity of PE (0 = none to 3 = severe). Results. Of the total study population (N = 1,587), 207 subjects were diagnosed with PE and 1,380 were assigned to the non-PE group. Median IELT (min) was 1.8 (range, 0-41) for PE and 7.3 (range, 0-53) for non-PE subjects (P < 0.0001). More PE vs. non-PE subjects gave ratings of "very poor" or "poor" for control over ejaculation (72% vs. 5%; P < 0.0001) and satisfaction with sexual intercourse (31% vs. 1%; P < 0.0001). More subjects in the PE vs. non-PE group gave ratings of "quite a bit" or "extremely" for personal distress (64% vs. 4%; P < 0.0001) and interpersonal difficulty (31% vs. 1%; P < 0.0001). Subject and partner assessments showed similar patterns and correlated moderately (0.36-0.57).
  
  
  CONCLUSIONS
  PE subjects reported significantly shorter IELT. Overlap in IELT distributions was observed between the PE and non-PE groups, indicating the need for additional PRO measures to characterize PE. Shorter IELT was significantly associated with reduced ejaculatory control and sexual satisfaction and increased distress and interpersonal difficulty.
authors.affiliation: Department of Health Services and Epidemiology, University of Washington, Seattle, WA 98195-7660, USA. Donald@u.washington.edu
authors.forename: Donald L
authors.initials: DL
authors.lastname: Patrick
authors.forename: Stanley E
authors.initials: SE
authors.lastname: Althof
authors.forename: Jon L
authors.initials: JL
authors.lastname: Pryor
authors.forename: Raymond
authors.initials: R
authors.lastname: Rosen
authors.forename: David L
authors.initials: DL
authors.lastname: Rowland
authors.forename: Kai Fai
authors.initials: KF
authors.lastname: Ho
authors.forename: Pauline
authors.initials: P
authors.lastname: McNulty
authors.forename: Margaret
authors.initials: M
authors.lastname: Rothman
authors.forename: Carol
authors.initials: C
authors.lastname: Jamieson
mesh_terms: D000328:Adult; D004542:Ejaculation / Q000502:physiology*; D007172:Erectile Dysfunction / Q000503:physiopathology* / Q000628:therapy; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D019370:Observation; D010549:Personal Satisfaction; D013997:Time Factors