Sexual medicine · 2014
Psychometric properties of the Iranian version of the premature ejaculation diagnostic tool.
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Pakpour Amir H, Yekaninejad Mir Saeed, Nikoobakht Mohammad Reza, Burri Andrea, Fridlund Bengt
Аннотация
INTRODUCTION: Premature ejaculation (PE) is one of the most prevalent male sexual problems. The Premature Ejaculation Diagnostic Tool (PEDT) is a suitable patient-reported outcome measure for the assessment of PE.
AIM: To examine the psychometric proporties of a translated and culturally adapted version of the PEDT in a sample of Iranian men suffering from PE.
METHODS: Two independent samples were compared, one including patients with PE based on the DSM-IV-TR criteria (n = 269) and the other including healthy men without PE (n = 289). A backward-forward translation procedure was used to translate the PEDT into Persian. Both samples were asked to fill in the PEDT twice-at baseline and 4 weeks later.
MAIN OUTCOME MEASURES: Internal consistency, test-retest reliability, convergent validity, factor structure, measurement invariance across sexual health status (i.e., between men with and without PE).
RESULTS: Mean ages of men without and with PE were 34.9 and 35.3 years, respectively. Cronbach's alpha coefficient for the total PEDT score was 0.89. All items and the total score were remarkably consistent between the two measurement points. All five PEDT items correlated at r = 0.40 or greater with their own scale, indicating good convergent validity. There was a high and significant correlation (r = -0.82, P < 0.001) between the PEDT score and IELT. Healthy men reported lower scores (fewer complaints) on the PEDT compared with the PE group. A single-factor model was found to be best-fitting in the exploratory factor analysis; this was confirmed by confirmatory factor analysis. The PEDT was invariant across sexual health status and perceived similarly by men with and without PE.
CONCLUSION: The results provide evidence for good reliability and validity of the Iranian version of the PEDT. The questionnaire therefore represents a suitable tool for screening PE in Iranian men. Pakpour AH, Yekaninejad MS, Nikoobakht MR, Burri A, and Fridlund B. Psychometric properties of the Iranian version of the Premature Ejaculation Diagnostic Tool. Sex Med 2014;2:31-40.
AIM: To examine the psychometric proporties of a translated and culturally adapted version of the PEDT in a sample of Iranian men suffering from PE.
METHODS: Two independent samples were compared, one including patients with PE based on the DSM-IV-TR criteria (n = 269) and the other including healthy men without PE (n = 289). A backward-forward translation procedure was used to translate the PEDT into Persian. Both samples were asked to fill in the PEDT twice-at baseline and 4 weeks later.
MAIN OUTCOME MEASURES: Internal consistency, test-retest reliability, convergent validity, factor structure, measurement invariance across sexual health status (i.e., between men with and without PE).
RESULTS: Mean ages of men without and with PE were 34.9 and 35.3 years, respectively. Cronbach's alpha coefficient for the total PEDT score was 0.89. All items and the total score were remarkably consistent between the two measurement points. All five PEDT items correlated at r = 0.40 or greater with their own scale, indicating good convergent validity. There was a high and significant correlation (r = -0.82, P < 0.001) between the PEDT score and IELT. Healthy men reported lower scores (fewer complaints) on the PEDT compared with the PE group. A single-factor model was found to be best-fitting in the exploratory factor analysis; this was confirmed by confirmatory factor analysis. The PEDT was invariant across sexual health status and perceived similarly by men with and without PE.
CONCLUSION: The results provide evidence for good reliability and validity of the Iranian version of the PEDT. The questionnaire therefore represents a suitable tool for screening PE in Iranian men. Pakpour AH, Yekaninejad MS, Nikoobakht MR, Burri A, and Fridlund B. Psychometric properties of the Iranian version of the Premature Ejaculation Diagnostic Tool. Sex Med 2014;2:31-40.