title: Prevalence of prostatitis-like symptoms in outpatients with four premature ejaculation syndromes: a study in 438 men complaining of ejaculating prematurely.
abstract: OBJECTIVE
  To evaluate the incidence of prostatitis-like symptoms (PLS) in men with or without PE, and the differences among the 438 outpatients with the four PE syndromes.
  
  
  METHODS
  Between January 2012 and January 2013, 438 consecutive heterosexual men complaining of PE and another 493 male healthy subjects without the complaint were included in this study. Each of them completed a detailed face-to-face questionnaire for information of demographics, National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI), and International Index of Erectile Function-5 (IIEF-5). Each patient was classified as one of the four PE subtypes: lifelong PE (LPE), acquired PE (APE), natural variable PE (NVPE), or premature-like ejaculatory dysfunction (PLED).
  
  
  RESULTS
  There were no significant difference between patients and control subjects regarding demographics. In the PE group, the prevalence of PLS were 32%, showing statistical significance compared with control subjects (15.8%, P<0.001). And the NIH-CPSI score was 10.0±7.9, showing significant difference compared with control subjects (6.0± 5.4, P<0.001). Among the four PE syndromes, patients with PLED had the highest prevalence of PLS (42.3%, P<0.001), but the difference of NIH-CPSI scores among the four PE syndromes was not significant (P=0.055).
  
  
  CONCLUSIONS
  PLS were more common in patients with PE. Also, patients had worse NIH-CPSI scores than the control subjects. Therefore, patients with PLED had the highest incidence of PLS.
authors.affiliation: Department of Urology, The First Affiliated Hospital of Anhui Medical University Hefei, Anhui, China.
authors.forename: Dongdong
authors.initials: D
authors.lastname: Tang
authors.affiliation: Department of Urology, The First Affiliated Hospital of Anhui Medical University Hefei, Anhui, China.
authors.forename: Xiansheng
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Urology, The First Affiliated Hospital of Anhui Medical University Hefei, Anhui, China.
authors.forename: Zongyao
authors.initials: Z
authors.lastname: Hao
authors.affiliation: Department of Urology, The First Affiliated Hospital of Anhui Medical University Hefei, Anhui, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Department of Urology, The First Affiliated Hospital of Anhui Medical University Hefei, Anhui, China.
authors.forename: Chaozhao
authors.initials: C
authors.lastname: Liang
keywords: Premature ejaculation; chronic prostatitis; prevalence; prostatitis-like symptoms