title: A questionnaire on treatment satisfaction and disease specific knowledge among patients with acute coronary syndrome. I: Are treatment satisfaction and disease specific knowledge continuous latent traits?
abstract: OBJECTIVE
  To assess psychometric properties of a questionnaire covering treatment satisfaction and disease-specific knowledge among patients discharged after treatment for acute coronary syndrome.
  
  
  METHODS
  Comparative scaling of the questionnaire using latent class analysis (LCA) and exploratory factor analysis (EFA) in a consecutive sample of 2015 patients.
  
  
  RESULTS
  LCA revealed four qualitatively differing patterns of patients' knowledge and five distinct patterns of treatment satisfaction. EFA for patients' knowledge identified four uncorrelated "dimensions". Patient satisfaction was scored in a two-factor solution despite proven heterogeneity of persons.
  
  
  CONCLUSIONS
  LCA was helpful to identify classes of patients that cannot be scaled according to a latent trait model.
  
  
  CONCLUSIONS
  Specific patterns of insufficient disease-specific knowledge and satisfaction requiring specific interventions became visible.
authors: Carinthia University of Applied Sciences, Feldkirchen, Austria. u.frick@fh-kaernten.at
authors: Ulrich
authors: U
authors: Frick
authors: Wolfgang
authors: W
authors: Wiedermann
authors: Florian S
authors: FS
authors: Gutzwiller
mesh_terms: D054058:Acute Coronary Syndrome / Q000523:psychology* / Q000628:therapy; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005163:Factor Analysis, Statistical; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D011594:Psychometrics / Q000379:methods*; D011788:Quality of Life; D012044:Regression Analysis; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*