title: Validity and reliability of patient selected goals as an outcome measure in overactive bladder.
abstract: OBJECTIVE
  The purpose of this study is to assess the validity of patient goal achievement in overactive bladder (OAB).
  
  
  METHODS
  Data were taken from a placebo-controlled randomised trial of transdermal oxybutynin and open label extension study. Face validity was assessed using qualitative analysis. Convergent validity was assessed by comparison with objective symptom improvement. Responsiveness was assessed at 4 s, using the standardised effect size. Reliability was assessed between 4 and 12 weeks of treatment.
  
  
  RESULTS
  Ninety-six women were randomised. There were moderate correlations (0.50-0.51) between goal achievement and symptom improvement for urinary urgency and urge incontinence. Mean goal achievement demonstrated good reliability (intraclass correlation = 0.82) but low responsiveness (r = 0.14) between transdermal oxybutynin and placebo-treated groups.
  
  
  CONCLUSIONS
  Although patient goals have good face validity and can be reliably measured, they have limited convergence with conventional measures of OAB severity and improvement and low responsiveness.
authors.affiliation: Department of Urogynaecology, King's College Hospital, Denmark Hill, London SE5 9RS, UK. rufus.cartwright@gmail.com
authors.forename: Rufus
authors.initials: R
authors.lastname: Cartwright
authors.forename: Sushma
authors.initials: S
authors.lastname: Srikrishna
authors.forename: Linda
authors.initials: L
authors.lastname: Cardozo
authors.forename: Dudley
authors.initials: D
authors.lastname: Robinson
mesh_terms: D005260:Female; D006040:Goals; D006801:Humans; D008333:Mandelic Acids / Q000627:therapeutic use*; D018727:Muscarinic Antagonists / Q000627:therapeutic use*; D010358:Patient Participation; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D053201:Urinary Bladder, Overactive / Q000188:drug therapy* / Q000523:psychology*
chemical_list: D008333:Mandelic Acids; D018727:Muscarinic Antagonists; C005419:oxybutynin