{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T09:10:55Z","timestamp":1762506655835},"reference-count":33,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2015,10,1]],"date-time":"2015-10-01T00:00:00Z","timestamp":1443657600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,10,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:sec>\n                  <jats:title>Introduction<\/jats:title>\n                  <jats:p>Lifelong premature ejaculation (LPE) is the most important ejaculating dysfunction. Relatively little is known about erectile function in this population.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Aims<\/jats:title>\n                  <jats:p>We attempted to evaluate the erectile function of patients with LPE using the International Index of Erectile Function\u20145 (IIEF-5) to determine if it is sufficiently reliable and accurate to make such an assessment.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>A total of 406 patients with LPE were enrolled in our study. The participants voluntarily answered the Premature Ejaculation Diagnostic Tool (PEDT) and IIEF-5 questionnaires and underwent a full history evaluation and clinical examination by doctors. Their answers were converted into data analyzed by a statistic software.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Main Outcome Measures<\/jats:title>\n                  <jats:p>The patients were diagnosed with LPE based on the diagnostic criteria and PEDT scores. The intravaginal ejaculation latency time was recorded according to patient self-reports. The IIEF-5 was used to evaluate their erectile function. Thorough history and clinical examination helped doctors make more correct diagnoses of erectile dysfunction (ED).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Of the 406 patients, 70 (17.24%) patients had ED, as confirmed by doctors. IIEF-5 was accurate for the assessment of the erectile function of LPE patients when the cutoff was decreased to 15.5. Question 5 (1.34\u2009\u00b1\u20090.53) was the main reason for the drop in the total IIEF-5 score. Questions 1 and 5 shared low consistency with the other three IIEF-5 items, thus they lowered the reliability of the IIEF-5 scores. These questions created a confounding bias that decreased the diagnostic threshold of IIEF-5. However, they could not be removed from the IIEF-5 because they did not reduce its diagnostic accuracy in patients with LPE.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Bias from questions 1 and 5 lowered the reliability of the IIEF-5 scores; however, it did not reduce the diagnostic accuracy of the IIEF-5. The recommendation is to edit questions 1 and 5 when they are applied to populations with LPE.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1111\/jsm.12988","type":"journal-article","created":{"date-parts":[[2015,10,20]],"date-time":"2015-10-20T16:21:30Z","timestamp":1445358090000},"page":"2061-2069","source":"Crossref","is-referenced-by-count":7,"title":["Bias in Evaluating Erectile Function in Lifelong Premature Ejaculation Patients with the International Index of Erectile Function\u20145"],"prefix":"10.1093","volume":"12","author":[{"given":"Y.","family":"Tang","sequence":"first","affiliation":[{"name":"Department of Urology \u00a0 , Changsha, Hunan, 410013 , China"},{"name":"The Third Xiangya Hospital of Central South University \u00a0 , Changsha, Hunan, 410013 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Y.","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Urology \u00a0 , Changsha, Hunan, 410013 , China"},{"name":"The Third Xiangya Hospital of Central South University \u00a0 , Changsha, Hunan, 410013 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology \u00a0 , Changsha, Hunan, 410013 , China"},{"name":"The Third Xiangya Hospital of Central South University \u00a0 , Changsha, Hunan, 410013 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"X.","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Urology \u00a0 , Changsha, Hunan, 410013 , China"},{"name":"The Third Xiangya Hospital of Central South University \u00a0 , Changsha, Hunan, 410013 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Y.","family":"Gan","sequence":"additional","affiliation":[{"name":"Department of Urology \u00a0 , Changsha, Hunan, 410013 , China"},{"name":"The Third Xiangya Hospital of Central South University \u00a0 , Changsha, Hunan, 410013 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Urology \u00a0 , Changsha, Hunan, 410013 , China"},{"name":"The Third Xiangya Hospital of Central South University \u00a0 , Changsha, Hunan, 410013 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2015,10,1]]},"reference":[{"key":"2023010713375659300_bb0010","doi-asserted-by":"crossref","first-page":"1392","DOI":"10.1111\/jsm.12504","article-title":"An update of the International Society of Sexual Medicine's guidelines for the diagnosis and treatment of premature ejaculation (PE)","volume":"11","author":"Althof","year":"2014","journal-title":"J Sex Med"},{"key":"2023010713375659300_bb0015","article-title":"Diagnostic and statistical manual of mental disorders","author":"American Psychiatric Association","year":"2000","edition":"4th 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