title: Association between lower urinary tract symptoms and sexual dysfunction assessed using the core lower urinary tract symptom score and International Index of Erectile Function-5 questionnaires.
abstract: OBJECTIVE
  The aim of this study is to assess the association between lower urinary tract symptoms (LUTS) and erectile dysfunction (ED) using the Core Lower Urinary Tract Symptom Score (CLSS) and the International Index of Erectile Dysfunction (IIEF)-5 questionnaires.
  
  
  METHODS
  A total of 220 consecutive treatment-naive men completed the International Prostate Symptom Score (IPSS), CLSS, and IIEF-5 questionnaires. The clinical diagnoses were benign prostate hyperplasia (BPH, n=58), prostatic cancer (n=51), prostatitis (n=28), overactive bladder wet (OAB wet, n=16), other diagnoses (n=39), and controls (n=28). Simple statistics and predictability of low IIEF-5 score were examined.
  
  
  RESULTS
  The total IIEF-5 score significantly correlated with both the IPSS and CLSS questionnaires (p=0.0001). Among IPSS and CLSS symptoms, factors other than daytime frequency and incomplete emptying showed significant correlation with the total IIEF-5 score. A multivariate regression model indicated nocturia and urethral pain as independent factors for low IIEF-5 scores.
  
  
  CONCLUSIONS
  Urethral pain was identified as an independent factor for erectile dysfunction. The extraction of pain symptoms using CLSS questionnaire may be useful to evaluate LUTS in men with pelvic health problems.
authors.affiliation: Department of Urology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Nakamura
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Fujimura
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Nagata
authors.forename: Chihiro
authors.initials: C
authors.lastname: Hosoda
authors.forename: Motofumi
authors.initials: M
authors.lastname: Suzuki
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Fukuhara
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Enomoto
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Nishimatsu
authors.forename: Haruki
authors.initials: H
authors.lastname: Kume
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Igawa
authors.forename: Yukio
authors.initials: Y
authors.lastname: Homma
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D007172:Erectile Dysfunction / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000150:complications*; D011470:Prostatic Hyperplasia / Q000150:complications*; D011471:Prostatic Neoplasms / Q000150:complications; D011472:Prostatitis / Q000150:complications; D011795:Surveys and Questionnaires; D014522:Urethral Diseases / Q000150:complications*; D053201:Urinary Bladder, Overactive / Q000150:complications*