title: [Schulthess Hip Score (5 items) for assessing disability in patients undergoing total hip arthroplasty. Development and validation].
abstract: BACKGROUND
  We developed and validated a five-item self-report questionnaire for assessing disability as defined by the International Classification of Functioning, Disability, and Health conceptual model in patients with hip osteoarthritis (OA).
  
  
  METHODS
  The psychometric properties of the new score (Schulthess hip score, SHS) were examined in 105 consecutive patients (mean age 63 years; 48 women) undergoing total hip arthroplasty (THA).
  
  
  RESULTS
  The completion rate (97%) and reproducibility (intraclass correlation coefficient 0.90) of the SHS were excellent. Exploratory factor analysis indicated that all items that loaded on one factor only that accounted for 69.4% of the total variance. Cronbach's alpha was 0.88. Evidence of validity was provided by moderate to high correlations (r=-0.37-0.78) with the scores of traditionally used self-reported outcome measures. The SHS was very responsive, with an effect size of 2.15 and a standardized response mean of 1.74 for changes recorded 6 months after THA.
  
  
  CONCLUSIONS
  These results provide evidence to support use of the SHS for assessing disability in patients with hip OA.
authors.affiliation: Gelenkzentrum Untere Extremitäten, Schulthess Klinik, Lengghalde 2, CH-8008, Zürich, Schweiz. florian.naal@gmail.com
authors.forename: F D
authors.initials: FD
authors.lastname: Naal
authors.forename: F M
authors.initials: FM
authors.lastname: Impellizzeri
authors.forename: M
authors.initials: M
authors.lastname: Wasmer
authors.forename: A F
authors.initials: AF
authors.lastname: Mannion
authors.forename: M
authors.initials: M
authors.lastname: Leunig
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000706:statistics & numerical data*; D015331:Cohort Studies; D004185:Disability Evaluation; D005260:Female; D005271:Femur Head Necrosis / Q000145:classification / Q000601:surgery; D005858:Germany; D006618:Hip Dislocation, Congenital / Q000145:classification / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000145:classification* / Q000601:surgery*; D015203:Reproducibility of Results; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires
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