title: The Patients Preferences Questionnaire for Angina treatment: results and psychometrics from 383 patients in primary care in England.
abstract: OBJECTIVE
  To develop a psychometrically valid Patient Preferences Questionnaire for Angina treatment (PPQA).
  
  
  METHODS
  Seven general practices across England in 2007.
  
  
  METHODS
  Convenience sample of 383 patients with diagnosed angina.
  
  
  METHODS
  Postal self-administered questionnaire survey using the full-length PPQA. This comprised 54 items about the three main treatment modalities for angina: medication, angioplasty and coronary artery bypass grafting.
  
  
  RESULTS
  The full PPQA was reduced to 18 items, six for each of the three subscales (treatment modalities), by standard psychometric methods. The reduced PPQA was psychometrically sound and valid, although confirmatory factor analyses with a larger sample are required.
  
  
  CONCLUSIONS
  The PPQA is a potentially useful instrument to help clinicians understand patients' angina treatment preferences.
authors.affiliation: Department of Primary Care and Population Sciences, University College London, London, UK. a.bowling@ucl.ac.uk
authors.forename: A
authors.initials: A
authors.lastname: Bowling
authors.forename: B
authors.initials: B
authors.lastname: Reeves
authors.forename: G
authors.initials: G
authors.lastname: Rowe
mesh_terms: D000368:Aged; D000787:Angina Pectoris / Q000628:therapy*; D004739:England; D005260:Female; D058006:General Practice; D006801:Humans; D008297:Male; D057240:Patient Preference; D011320:Primary Health Care; D011594:Psychometrics; D011795:Surveys and Questionnaires; D006113:United Kingdom