title: The diagnostic value of the premature ejaculation diagnostic tool and its association with intravaginal ejaculatory latency time.
abstract: BACKGROUND
  Premature ejaculation (PE) is the most prevalent male ejaculation disorder. The premature ejaculation diagnostic tool (PEDT) was developed to systematically apply the DSM-IV-TR criteria in diagnostic PE.
  
  
  OBJECTIVE
  To evaluate the diagnostic value of the PEDT and its association with intravaginal ejaculatory latency time (IELT).
  
  
  METHODS
  (i) Korean validation of PEDT: data was collected from men interviewed by one of the two clinical experts, who made a diagnostic of present or absence of PE, using DSM-IV-TR criteria. A total of 103 patients with PE and 100 men without PE were enrolled into the study and requested to complete the PEDT; and (ii) The correlation between IELT and PEDT: 200 participants were enrolled and each participant was asked to make out PEDT. All participants were requested to measure IELT.
  
  
  METHODS
  Validity and reliability of the PEDT and its association with IELT.
  
  
  RESULTS
  The geometric mean IELT of the PE group was 115.37 ± 78.14 seconds. The number of men reporting IELTs of <1, 1 to ≤ 2, and >2 minutes were 28 (28.6%), 29 (29.6%), and 41 (41.8%), respectively. The Cronbach's alpha score was calculated as 0.93, showing adequate internal consistency. The test-retest correlation coefficients of each item were higher than 0.72 and the correlation coefficients of the total score was 0.88. (P < 0.001) Sensitivity and specificity analyses suggested a score of ≤ 8 indicated no PE, 9 and 10 probable PE, and ≥ 11 PE. The PEDT total score and IELT showed an adequate negative correlation. (ρ = -0.77, P < 0.0001) also, the PEDT total score of the PE subgroup (IELT ≤ 2 minutes) and IELT showed a negative correlation. (ρ = -0.6, P < 0.0001)
  
  
  CONCLUSIONS
  The PEDT was highly effective in detecting the presence of PE. The result of our study supports its validity as a diagnostic tool in the clinical setting.
authors.affiliation: Gyeongsang National University School of Medicine, Department of Urology, Jinju, Korea.
authors.forename: Sung Chul
authors.initials: SC
authors.lastname: Kam
authors.forename: Deok Hyun
authors.initials: DH
authors.lastname: Han
authors.forename: Sung Won
authors.initials: SW
authors.lastname: Lee
mesh_terms: D000328:Adult; D003075:Coitus; D004542:Ejaculation; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D020018:Sexual Dysfunctions, Psychological / Q000175:diagnosis*; D011795:Surveys and Questionnaires; D013995:Time