[Reliability and validity of the Chinese version of The Premature Ejaculation Diagnostic Tool].
OBJECTIVE
To translate the English version of The Premature Ejaculation Diagnostic Tool (PEDT) into Chinese, evaluate its reliability and validity, and analyze its feasibility in the diagnosis of premature ejaculation (PE).


METHODS
Following the forward-backward translation procedure, we developed the Chinese version of PEDT, which was then revised by andrologists and bilingual linguists. We enrolled subjects with or without PE from 15 urological or andrological clinics in China and obtained the information about their demographic characteristics, PEDT scores, and intra-vaginal ejaculation latency time (IELT). We evaluated the internal consistency of PEDT using Cronbach alpha, was examined its reliability and stability by test-retest analysis, analyzed its correlation with IELT by Spearman correlation analysis, and tested its sensitivity and specificity by receiver operating characteristic ( ROC) analysis.


RESULTS
Totally, 570 PE patients (aged [30.66 ± 7.11] years) and 226 non-PE men (aged [33.01 ± 5.41] years) were recruited, with the mean IELT of (1.34 ± 0.54) min in the former and (11.09 ± 7.5) min in the latter group. The Cronbach's alpha of the Chinese version of PEDT was 0.79, and the test-retest correlation coefficient was 0.75 (P < 0.01). The PEDT score was negatively correlated with IELT (Spearman's p = -0.52, P < 0.01). When the cutoff value of PE diagnosis was defined as 7.5, the sensitivity and specificity of PEDT were 0.80 and 0.78, and when as 8.5, they were 0.72 and 0.89, respectively.


CONCLUSIONS
The Chinese version of PEDT was demonstrated to have good internal consistency, reliability, and validity, as well as a high predictability for PE. It can be used as a reliable and convenient tool to screen PE among Chinese men.
Hui
H
Jiang
De-feng
DF
Liu
Chun-hua
CH
Deng
Xue-jun
XJ
Shang
Kai
K
Hong
Jun-hong
JH
Deng
Zeng-jun
ZJ
Wang
Huai
H
Yang
Yi-chao
YC
Shi
Yong-han
YH
Huang
Pei-tao
PT
Wang
Yan
Y
Zhang
Ji-hong
JH
Liang
Bai-hua
BH
Shen
Fu-biao
FB
Li
Chun-ying
CY
Zhang
D000328:Adult; D000368:Aged; D044466:Asian People; D002681:China; D004542:Ejaculation; D005240:Feasibility Studies; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D061686:Premature Ejaculation / Q000175:diagnosis*; D012372:ROC Curve; D011930:Reaction Time; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014177:Translations