title: Relationships between intravaginal ejaculatory latency time and national institutes of health-chronic prostatitis symptom index in the four types of premature ejaculation syndromes: a large observational study in China.
abstract: BACKGROUND
  Besides lifelong premature ejaculation (LPE) and acquired premature ejaculation (APE), Waldinger and Schweitzer proposed two addition PE syndromes (variable PE [VPE] and subjective PE [SPE]).
  
  
  OBJECTIVE
  We assessed the associations between intravaginal ejaculatory latency time (IELT) and National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) in men with different PE syndromes.
  
  
  METHODS
  From September 2011 to September 2012, a total of 4,000 men were enrolled from the Anhui province of China. Subjects were required to complete a verbal questionnaire, including demographic information, medical and sexual history (e.g., IELT), and self-estimated scales (e.g., NIH-CPSI).
  
  
  METHODS
  IELT; NIH-CPSI; the new classification of PE syndromes.
  
  
  RESULTS
  Of 3,016 of the men evaluated, 25.80% complained of PE. Distribution of the four PE syndromes among men with complaints of PE was as follows: LPE, 12.34%; APE, 18.77%; VPE, 44.09%; and SPE, 24.81%. Men with complaints of PE reported worse NIH-CPSI scores and lower IELT than men without complaints of PE (P < 0.001 for all). Moreover, total and subdomain scores of NIH-CPSI were higher in men with APE, and IELT was higher in men with SPE. IELT was negatively associated with NIH-CPSI scores in men with complaints of PE. Negative relationships between total and subdomain scores of NIH-CPSI and IELT were stronger in men with APE (total scores: adjusted r = -0.68, P < 0.001; pain symptoms: adjusted r = -0.70, P < 0.001; urinary symptoms: adjusted r = -0.67, P < 0.001; quality of life impact: adjusted r = -0.64, P < 0.001).
  
  
  CONCLUSIONS
  Men with complaints of PE reported worse NIH-CPSI scores than men without complaints of PE. Relationships between IELT and NIH-CPSI scores were strongest in men with APE.
authors.affiliation: Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Gao
authors.forename: Chuan
authors.initials: C
authors.lastname: Xu
authors.forename: Chaozhao
authors.initials: C
authors.lastname: Liang
authors.forename: Puyu
authors.initials: P
authors.lastname: Su
authors.forename: Zhen
authors.initials: Z
authors.lastname: Peng
authors.forename: Kai
authors.initials: K
authors.lastname: Shi
authors.forename: Dongdong
authors.initials: D
authors.lastname: Tang
authors.forename: Pan
authors.initials: P
authors.lastname: Gao
authors.forename: Zhaoxiang
authors.initials: Z
authors.lastname: Lu
authors.forename: Jishuang
authors.initials: J
authors.lastname: Liu
authors.forename: Lei
authors.initials: L
authors.lastname: Xia
authors.forename: Jiajia
authors.initials: J
authors.lastname: Yang
authors.forename: Zongyao
authors.initials: Z
authors.lastname: Hao
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.forename: Xiansheng
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000328:Adult; D002681:China / Q000453:epidemiology; D002908:Chronic Disease; D004542:Ejaculation / Q000502:physiology; D004812:Epidemiologic Methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000453:epidemiology; D061686:Premature Ejaculation / Q000453:epidemiology* / Q000503:physiopathology; D011472:Prostatitis / Q000150:complications / Q000453:epidemiology* / Q000503:physiopathology; D011788:Quality of Life; D011930:Reaction Time / Q000502:physiology; D013577:Syndrome; D014481:United States; D055815:Young Adult
keywords: IELT; NIH-CPSI; Premature Ejaculation Syndromes