title: Reliability and validity of the overactive bladder symptom score in Hong Kong Chinese.
abstract: OBJECTIVE
  To validate the Hong Kong Chinese translation of the Overactive Bladder Symptom Score questionnaire (OABSS-HKC).
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  Five urology clinics of different regional hospitals in Hong Kong.
  
  
  METHODS
  The Overactive Bladder Symptom Score questionnaire was translated and culturally adapted for Hong Kong Chinese, according to the Principles of Good Practice for the Translation and Cultural Adaptation Process for Patient-Reported Outcomes Measures. Chinese-speaking patients with overactive bladder symptoms were recruited from five urology clinics. The patients completed the OABSS-HKC, a 3-day micturition diary, International Prostate Symptom Scores, and the Patient Perception of Bladder Condition questionnaires (visit 1), and again after a 2-week interval (visit 2). Test-retest reliability was evaluated by the intraclass correlation coefficient and weighted Kappa coefficient. The relationship between OABSS-HKC total scores and items in the comparison measures was evaluated using Spearman's correlation coefficients.
  
  
  RESULTS
  The OABSS-HKC was successfully translated and culturally adapted. Fifty-one patients completed the validation study. A high level of reliability was observed between the OABSS-HKC total score answered at visit 1 and 2 for all subjects (intraclass correlation coefficient, 0.82) and among the four items answered (weighted Kappa coefficients, 0.57-0.75). The OABSS-HKC total score correlated significantly with numbers of micturitions, incontinence and urgency episodes recorded in the 3-day micturition diary, as well as the total International Prostate Symptom Scores and the Patient Perception of Bladder Condition score. However, the OABSS-HKC total score was not significantly associated with nocturia episodes, total voided volume, or number of pads used.
  
  
  CONCLUSIONS
  The OABSS-HKC total scores are reliable and moderately valid for the quantitative evaluation of overactive bladder symptoms in Hong Kong Chinese-speaking adults.
authors.affiliation: Division of Urology, Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong.
authors.forename: M K
authors.initials: MK
authors.lastname: Yiu
authors.forename: C M
authors.initials: CM
authors.lastname: Li
authors.forename: S M
authors.initials: SM
authors.lastname: Hou
authors.forename: C W
authors.initials: CW
authors.lastname: Wong
authors.forename: S
authors.initials: S
authors.lastname: Tam
authors.forename: S K
authors.initials: SK
authors.lastname: Chu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D006723:Hong Kong; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D053158:Nocturia / Q000453:epidemiology / Q000209:etiology; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D053201:Urinary Bladder, Overactive / Q000175:diagnosis* / Q000503:physiopathology; D014549:Urinary Incontinence / Q000453:epidemiology / Q000209:etiology
keywords: Reproducibility of results; Severity of illness index; Urinary bladder, overactive; Validation studies