title: Nocturia is the Lower Urinary Tract Symptom With Greatest Impact on Quality of Life of Men From a Community Setting.
abstract: OBJECTIVE
  Lower urinary tract symptoms are numerous, but the specific impact of each of these symptoms on the quality of life (QoL) has not been evaluated in community-dwelling men. An assessment of these symptoms and their effects on QoL was the focus of this study.
  
  
  METHODS
  We performed a cross-sectional study with 373 men aged >50 years from a community setting. Patients completed the International Prostate Symptom Score questionnaire, which includes questions on each of the specific urinary symptoms and a question addressing health-related QoL that are graded from 0 to 5. We used the Pearson correlation test to assess the impact of each symptom on QoL.
  
  
  RESULTS
  Nocturia (58.9%) was the most prevalent urinary symptom. The mean score was 0.9±1.4 for incomplete emptying, 1.0±1.5 for frequency, 0.9±1.3 for intermittency, 0.8±1.3 for urgency, 1.0±1.5 for weak stream, 0.5±1.0 for straining, and 2.0±1.6 for nocturia. Nocturia and frequency were the only symptoms associated with poorer QoL, with nocturia showing a stronger association.
  
  
  CONCLUSIONS
  Nocturia affects 50% of community dwelling men aged >50 years, and is the lower urinary tract symptom with the greatest negative impact on QoL.
authors.affiliation: Division of Urology, Hospital das Clinicas, University of Sao Paulo Medical School, Sao Paulo, Brazil.
authors.forename: Eduardo de Paula
authors.initials: Ede P
authors.lastname: Miranda
authors.affiliation: Division of Urology, Hospital das Clinicas, University of Sao Paulo Medical School, Sao Paulo, Brazil.
authors.forename: Cristiano Mendes
authors.initials: CM
authors.lastname: Gomes
authors.affiliation: Division of Urology, Hospital das Clinicas, University of Sao Paulo Medical School, Sao Paulo, Brazil.
authors.forename: Fábio César Miranda
authors.initials: FC
authors.lastname: Torricelli
authors.affiliation: Federal University of Ceara School of Medicine, Fortaleza, Brazil.
authors.forename: José
authors.initials: J
authors.lastname: de Bessa
authors.affiliation: Federal University of Ceara School of Medicine, Fortaleza, Brazil.
authors.forename: José Everton
authors.initials: JE
authors.lastname: de Castro
authors.affiliation: Federal University of Ceara School of Medicine, Fortaleza, Brazil.
authors.forename: Bruno Roberto da Silva
authors.initials: BR
authors.lastname: Ferreira
authors.affiliation: Federal University of Ceara School of Medicine, Fortaleza, Brazil.
authors.forename: Ariel Gustavo
authors.initials: AG
authors.lastname: Scafuri
authors.affiliation: Division of Urology, Hospital das Clinicas, University of Sao Paulo Medical School, Sao Paulo, Brazil.
authors.forename: Homero
authors.initials: H
authors.lastname: Bruschini
authors.affiliation: Division of Urology, Hospital das Clinicas, University of Sao Paulo Medical School, Sao Paulo, Brazil.
authors.forename: Miguel
authors.initials: M
authors.lastname: Srougi
keywords: Epidemiology; Lower urinary tract symptoms; Nocturia; Prostatic hyperplasia; Quality of life