title: Validation of the Spanish version of the questionnaire «Benefit, satisfaction and willingness to continue the treatment» in patients with overactive bladder.
abstract: OBJECTIVE
  To perform the linguistic and psychometric validation of the Spanish version of the BSW (Benefit, Satisfaction and Willingness to continue) questionnaire.
  
  
  METHODS
  Epidemiologic, observational, multicenter, prospective (October 2008-February 2009) study in patients ≥40 years old with de novo overactive bladder syndrome who start treatment with antimuscarinics by physicians assessment. Data was recorded at baseline (face-to-face) and the follow-up of the study after 1 and 3 months (closed surveys by phone). Morisky-Green questionnaire was used to assess compliance. Bladder Control Self-assessment Questionnaire (B-SAQ) and BSW questionnaire were completed, performing the validation of BSW.
  
  
  RESULTS
  312 evaluable patients were recruited, 93 remained until the 3 months visit. 65% and 71% of patients were not compliant with treatment at 1 and 3 months, respectively. The correlation between the BSW and the B-SAQ questionnaires after 1 and 3 months was moderate and statistically significant. The internal consistency between the BSW questionnaire items was high (Cronbach alpha: 0,89 at 1 month and 0,84 at 3 months). 92% of patients understood the questions and 84% were able to fill the BSW questionnaire without need of previous instructions (N=25).
  
  
  CONCLUSIONS
  The BSW questionnaire has been shown to be a feasible, valid and reliable tool to know the patient self-assessment of the treatment, according to its psychometric properties.
authors.affiliation: Servicio de Urología, Hospital Universitario Ramón y Cajal, Madrid, España. Electronic address: mjcidre00@hotmail.com.
authors.forename: M A
authors.initials: MA
authors.lastname: Jiménez
authors.forename: J
authors.initials: J
authors.lastname: Cambronero
mesh_terms: D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D010342:Patient Acceptance of Health Care; D017060:Patient Satisfaction; D011446:Prospective Studies; D013030:Spain; D011795:Surveys and Questionnaires; D053201:Urinary Bladder, Overactive / Q000628:therapy*
keywords: Cuestionarios; Estudio de validación; Overactive bladder; Questionnaires; Validation study; Vejiga hiperactiva