title: Defining association between sleep apnea syndrome and erectile dysfunction.
abstract: OBJECTIVE
  To conduct a study using validated sexual function and sleepiness inventories to define whether sleep apnea syndrome (SAS) is associated with erectile dysfunction and whether any correlation exists between the severity of SAS and the severity of erectile dysfunction. Previous work has suggested that sleep disorders are associated with erectile dysfunction.
  
  
  METHODS
  Men presenting to a sleep clinic with symptoms consistent with SAS were given the Epworth Sleepiness Scale and an erectile dysfunction risk factor inventory, the International Index of Erectile Function. A database was constructed and statistical analysis conducted to define the correlation between the two entities.
  
  
  RESULTS
  A total of 50 men met the criteria for inclusion. Of the 50 men, 60% had abnormal Epworth Sleepiness Scale scores and 80% of these patients had erectile dysfunction as determined by inventory scores compared with 20% of the men with normal Epworth Sleepiness Scale scores. There were statistically significant differences between men with normal and abnormal sleepiness scores for the total and erectile function domain of the International Index of Erectile Function. The correlation between the severity of the sleepiness and the severity of erectile dysfunction was good (r = -0.80, P = 0.012).
  
  
  CONCLUSIONS
  Men presenting with symptoms consistent with SAS have a significant risk of erectile dysfunction, and the correlation between the severity of sleep apnea and the severity of erectile dysfunction is strong.
authors.affiliation: Department of Urology, Weill Medical College, Cornell University, New York Presbyterian Hospital, New York, New York 10021, USA.
authors.forename: Patrick E
authors.initials: PE
authors.lastname: Teloken
authors.forename: Eric B
authors.initials: EB
authors.lastname: Smith
authors.forename: Chris
authors.initials: C
authors.lastname: Lodowsky
authors.forename: Thomas
authors.initials: T
authors.lastname: Freedom
authors.forename: John P
authors.initials: JP
authors.lastname: Mulhall
mesh_terms: D000328:Adult; D007172:Erectile Dysfunction / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index; D012891:Sleep Apnea Syndromes / Q000150:complications*