title: Prevalence and Associated Factors of Premature Ejaculation in the Anhui Male Population in China: Evidence-Based Unified Definition of Lifelong and Acquired Premature Ejaculation.
abstract: BACKGROUND
  In 2014, new evidence-based definitions of lifelong premature ejaculation (LPE) and acquired premature ejaculation (APE) were proposed by the International Society for Sexual Medicine. Based on the new PE definitions, the prevalence of and factors associated with LPE and APE have not been investigated in China.
  
  
  OBJECTIVE
  To evaluate the prevalence of and factors associated with LPE and APE in men with the complaint of PE in China.
  
  
  METHODS
  From December 2011 to December 2015, a cross-sectional field survey was conducted in five cities in the Anhui province of China. Questionnaire data of 3,579 men were collected in our database. The questionnaire included subjects' demographic information and medical and sexual histories. Men who were not satisfied with their time to ejaculate were accepted as having the complaint of PE. Men with the complaint of PE who met the new definition of PE were diagnosed as having LPE or APE.
  
  
  METHODS
  New definition of LPE and APE.
  
  
  RESULTS
  Of 3,579 men who completed the questionnaire, 34.62% complained of PE. Mean age, body mass index, and self-estimated intravaginal ejaculatory latency time for all subjects were 34.97 ± 9.02 years, 23.33 ± 3.56 kg/m2, and 3.09 ± 1.36 minutes, respectively. The prevalences of LPE and APE in men with the complaint of PE were 10.98% and 21.39%, respectively. LPE and APE were associated with age, body mass index, and smoking and exercise rates (P < .001 for all comparisons). Men with APE reported more comorbidities than men with LPE, especially in the presence of hypertension, diabetes mellitus, and heart disease (P < .001 for all comparisons).
  
  
  CONCLUSIONS
  In this study, the prevalences of LPE and APE in men with the complaint of PE were 10.98% and 21.39%, respectively. Patients with APE were older and more likely to smoke, had more comorbidities, and had a higher body mass index than patients with LPE.
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Gao
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Dangwei
authors.initials: D
authors.lastname: Peng
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China. Electronic address: xiansheng-zhang@163.com.
authors.forename: Xiansheng
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Zongyao
authors.initials: Z
authors.lastname: Hao
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Song
authors.initials: S
authors.lastname: Fan
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Mao
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
authors.forename: Xianming
authors.initials: X
authors.lastname: Dou
authors.affiliation: Department of Urology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China. Electronic address: Liang_chaozha0@163.com.
authors.forename: Chaozhao
authors.initials: C
authors.lastname: Liang
keywords: Acquired Premature Ejaculation; Associated Factors; Lifelong Premature Ejaculation; New Definition of Premature Ejaculation; Prevalence