title: [Comparisons of factors affecting voiding disorders between patients with benign prostate hyperplasia and volunteers].
abstract: OBJECTIVE
  The prostate size and motivation to visit clinics were investigated in patients with prostate hyperplasia.
  
  
  OBJECTIVE
  One hundred ninety-five patients who had urinary symptoms and visited our outpatient clinic between September 1994 and October 1999 and 268 age-matched volunteers in Mitaka City who underwent a medical examination of the prostate in June 1997 were compared. International Prostate Symptom Score (IPSS), Quality Of Life Score (QOL score), residual urine volume, prostate volume and urinary flow rate were measured.
  
  
  RESULTS
  The prostate volume of the volunteers was 20-25 cm3 irrespective of the age. The prostate size of the outpatients was larger than that of the volunteers for every age group. IPSS and QOL score were significantly higher in the outpatients than in the volunteers. Diurnal urinary frequency and sense of residual urine contributed to the discrimination index of the two groups more significantly than the other scores. There was a significant correlation between prostate volume and residual urine volume. The score of weak urinary steam was inversely and significantly correlated with peak urinary flow rate.
  
  
  CONCLUSIONS
  There was no age-related enlargement of the prostate gland. The prostate gland was significantly larger in the patients than in the volunteers even in those in their fifties. Urinary frequency and sense of residual urine are important factors for men to seek and receive medical care.
authors.affiliation: Department of Urology, Kyorin University, School of Medicine.
authors.forename: A
authors.initials: A
authors.lastname: Murata
authors.forename: M
authors.initials: M
authors.lastname: Tambo
authors.forename: T
authors.initials: T
authors.lastname: Yoshimatsu
authors.forename: M
authors.initials: M
authors.lastname: Ota
authors.forename: M
authors.initials: M
authors.lastname: Kinjo
authors.forename: H
authors.initials: H
authors.lastname: Noda
authors.forename: K
authors.initials: K
authors.lastname: Watanabe
authors.forename: M
authors.initials: M
authors.lastname: Kato
authors.forename: A
authors.initials: A
authors.lastname: Miyata
authors.forename: I
authors.initials: I
authors.lastname: Miura
authors.forename: T
authors.initials: T
authors.lastname: Okegawa
authors.forename: T
authors.initials: T
authors.lastname: Yoneda
authors.forename: M
authors.initials: M
authors.lastname: Yoshii
authors.forename: T
authors.initials: T
authors.lastname: Sayama
authors.forename: K
authors.initials: K
authors.lastname: Nutahara
authors.forename: E
authors.initials: E
authors.lastname: Higashihara
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000554:Ambulatory Care Facilities; D006801:Humans; D008297:Male; D016555:Matched-Pair Analysis; D008875:Middle Aged; D011467:Prostate / Q000473:pathology; D011470:Prostatic Hyperplasia / Q000175:diagnosis* / Q000503:physiopathology; D011788:Quality of Life; D014554:Urination / Q000502:physiology*