Qazvin Research Center for Social Determinants of Health, Qazvin University of Medical Sciences Qazvin, Iran ; Department of Public Health, Qazvin University of Medical Sciences Qazvin, Iran.
Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences Tehran, Iran.
Sex Med. 2014 Apr;2(1):31-40. doi: 10.1002/sm2.21.
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.
To examine the psychometric proporties of a translated and culturally adapted version of the PEDT in a sample of Iranian men suffering from PE.
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.
Internal consistency, test-retest reliability, convergent validity, factor structure, measurement invariance across sexual health status (i.e., between men with and without PE).
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.
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.
早泄（PE）是男性最常见的性问题之一。早泄诊断工具（PEDT）是评估 PE 的合适的患者报告结局测量工具。
在患有 PE 的伊朗男性样本中，检验经过翻译和文化适应的 PEDT 版本的心理测量特性。
比较了两个独立的样本，一个样本包括根据 DSM-IV-TR 标准诊断为 PE 的患者（n = 269），另一个样本包括没有 PE 的健康男性（n = 289）。使用反向向前翻译程序将 PEDT 翻译成波斯语。两个样本均被要求在基线和 4 周后两次填写 PEDT。
内部一致性、重测信度、聚合效度、因子结构、在性健康状况（即 PE 患者和无 PE 患者之间）的测量不变性。
无 PE 和有 PE 的男性的平均年龄分别为 34.9 和 35.3 岁。PEDT 总分的 Cronbach's alpha 系数为 0.89。在两个测量点之间，所有项目和总分都非常一致。PEDT 的所有五个项目与自身量表的相关性均为 r = 0.40 或更高，表明聚合效度良好。PEDT 评分与 IELT 之间存在高度显著的相关性（r = -0.82，P < 0.001）。与 PE 组相比，健康男性在 PEDT 上的评分（抱怨较少）较低。探索性因子分析发现单因子模型拟合最佳；验证性因子分析也证实了这一点。PEDT 在性健康状况方面不变，PE 患者和无 PE 患者的感知相似。
结果表明伊朗版 PEDT 具有良好的可靠性和有效性。因此，该问卷是伊朗男性筛查 PE 的合适工具。
