title: Validation of the Urgency, Weak stream, Incomplete emptying, and Nocturia (UWIN) score compared with the American Urological Association Symptoms Score in assessing lower urinary tract symptoms in the clinical setting.
abstract: OBJECTIVE
  To validate the Urgency, Weak stream, Incomplete emptying, and Nocturia (UWIN) survey for patients with lower urinary tract symptoms (LUTS) by comparison with the American Urological Association Symptoms Score (AUA-SS). The hypothesis is that the UWIN will perform as well as the AUA-SS in assessing LUTS symptoms and quality of life. The AUA-SS is complex for many patients and can be misunderstood. The UWIN questionnaire was developed to serve as a simpler and shorter version of the AUA-SS, with the intent of improving accuracy and minimizing error in assessing LUTS. The UWIN consists of 4 questions scored 0-3 to give a maximum score of 12.
  
  
  METHODS
  We screened 700 patients in the urology clinic between 2011 and 2012. We enrolled 593 patients who completed the AUA-SS survey and UWIN in the same clinic visit. The AUA-SS and UWIN responses were evaluated using Spearman correlation coefficients and Bland-Altman graphs.
  
  
  RESULTS
  Correlation coefficients were calculated between the corresponding AUA-SS and UWIN items on 593 matched surveys, demonstrating a strong correlation coefficient of 0.81 or greater for each question, which was statistically significant (P <.0001). The correlation coefficient between the total scores of the AUA and UWIN was 0.89 (P <.01). A second analysis was performed using Bland-Altman plots between AUA-SS and UWIN including total score, quality of life, and categories, which showed a good agreement.
  
  
  CONCLUSIONS
  The UWIN appears to provide results comparable to the AUA-SS, while using a simpler format and taking less time to complete.
authors.affiliation: Division of Urology, Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO.
authors.forename: Khadijah
authors.initials: K
authors.lastname: Eid
authors.affiliation: Division of Urology, Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO.
authors.forename: Kevin
authors.initials: K
authors.lastname: Krughoff
authors.affiliation: Division of Urology, Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO.
authors.forename: Diliana
authors.initials: D
authors.lastname: Stoimenova
authors.affiliation: Division of Urology, Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO.
authors.forename: Daniel
authors.initials: D
authors.lastname: Smith
authors.affiliation: Division of Urology, Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO.
authors.forename: Jason
authors.initials: J
authors.lastname: Phillips
authors.affiliation: Division of Urology, Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO.
authors.forename: Colin
authors.initials: C
authors.lastname: O'Donnell
authors.affiliation: Division of Urology, Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO. Electronic address: al.barqawi@ucdenver.edu.
authors.forename: Al
authors.initials: A
authors.lastname: Barqawi
mesh_terms: D000368:Aged; D006801:Humans; D059411:Lower Urinary Tract Symptoms / Q000150:complications / Q000175:diagnosis*; D008297:Male; D053158:Nocturia / Q000209:etiology; D011446:Prospective Studies; D012720:Severity of Illness Index; D012955:Societies, Medical; D063189:Symptom Assessment / Q000379:methods*; D014481:United States; D014555:Urination Disorders / Q000209:etiology; D014572:Urology