title: Prevalence and risk factors for erectile dysfunction in 2869 men using a validated questionnaire.
abstract: OBJECTIVE
  To assess prevalence and risk factors for erectile dysfunction (ED) by using the International Index of Erectile Function- 5 (IIEF-5) in men undergoing a health investigation.
  
  
  METHODS
  Men aged 20-80 years participating in a health-screening project in the area of Vienna completed the IIEF-5 for evaluation of ED. In parallel, all men underwent a detailed health examination including physical assessment, evaluation of various life-style factors, medical history and a blood analysis.
  
  
  RESULTS
  A total of 2869 men were analysed. According to the IIEF-5 score, 32.2% reported on any degree of ED (IIEF-5 score <22), 23.7% had mild ED (IIEF-5 score 17-21), 5.0% mild to moderate ED (IIEF-5 score 12-16), 2.2% moderate ED (IIEF-5 score 8-11) and 1.3% severe ED (IIEF-5 score 5-7). The proportion of men with ED remained stable from 20 to 50 years (26-29%) and increased thereafter to 37.5% (51-60 years) and to 71.2% in those 71-80 years of age. Severe ED (IIEF-5 score 5-7) increased from 0.4% (20-30 years) to 0.5% (41-50 years), 1.3% (51-60 years) and to 9.6% in those aged 71-80 years. Risk factors for ED were age, diabetes (OR: 3.0; 95%CI: 1.53-5.87), hyperlipidemia (OR: 2.29; 95%CI: 1.42-3.7), lower urinary tract symptoms (OR: 2.2; 95%CI: 1.76-2.76), hypertension (OR: 2.05; 95%CI: 1.61-2.6), psychological stress (OR: 1.68; 95%CI: 1.43-1.98) and low physical activity (OR: 1.35; 95%CI: 1.15-1.6) (all, p < 0.05).
  
  
  CONCLUSIONS
  Overall, 32.2% of men in our study had ED according to the IIEF-5. Apart from age, most important risk factors for ED were diabetes, hyperlipidemia, lower urinary tract symptoms, hypertension and psychological stress.
authors.affiliation: Department of Urology and Andrology, Ludwig Boltzmann Institute for Urological Oncology, Donauspital, Langobardenstrasse 122, A-1220 Vienna, Austria.
authors.forename: Anton
authors.initials: A
authors.lastname: Ponholzer
authors.forename: Christian
authors.initials: C
authors.lastname: Temml
authors.forename: Karl
authors.initials: K
authors.lastname: Mock
authors.forename: Martin
authors.initials: M
authors.lastname: Marszalek
authors.forename: Rudolf
authors.initials: R
authors.lastname: Obermayr
authors.forename: Stephan
authors.initials: S
authors.lastname: Madersbacher
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D007172:Erectile Dysfunction / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D011795:Surveys and Questionnaires