title: The Iranian version of Angina Pectoris characteristics questionnaire: reliability assessment.
abstract: OBJECTIVE
  To evaluate internal consistency and test-retest reliability of the Iranian version of the Angina Pectoris characteristics questionnaire.
  
  
  BACKGROUND
  To evaluate symptoms in patients with Angina Pectoris, the Iranian version of the Angina Pectoris characteristics questionnaire was created by combining items from Modified Rose Questionnaire, Short Form-McGill Questionnaire and the Accompanying Symptom Checklist. The Angina Pectoris characteristics questionnaire has been developed and validated recently although it required assessment of its reliability.
  
  
  METHODS
  Reliability study using test and retest.
  
  
  METHODS
  One hundred and ten coronary heart disease patients with Angina Pectoris were included. The test-retest reliability of the instrument was estimated for measurement after 15 days.
  
  
  RESULTS
  The analysis of the result indicated that internal consistency was found adequate at both assessments (Cronbach's alpha = 0.65) for test and retest. There was no significant difference between test and retest. The intra-class correlation coefficient ranged from 0.76-0.98.
  
  
  CONCLUSIONS
  The Angina Pectoris characteristics questionnaire is a reliable instrument for the assessment of Angina Pectoris characteristics in a Persian population.
  
  
  CONCLUSIONS
  The Angina Pectoris characteristics questionnaire can be used with confidence in Iranian coronary heart disease patients for Assessing Angina Pectoris symptom.
authors.affiliation: Iran University of Medical Science, Tehran, Iran. tahereh.najafi@ki.se
authors.forename: Tahereh
authors.initials: T
authors.lastname: Najafi-Ghezeljeh
authors.forename: Mesfin
authors.initials: M
authors.lastname: Kassaye Tessama
authors.forename: Mansoureh
authors.initials: M
authors.lastname: Yadavar-Nikravesh
authors.forename: Inger
authors.initials: I
authors.lastname: Ekman
authors.forename: Azita
authors.initials: A
authors.lastname: Emami
mesh_terms: D000787:Angina Pectoris / Q000175:diagnosis* / Q000453:epidemiology; D002637:Chest Pain; D003324:Coronary Artery Disease / Q000175:diagnosis / Q000453:epidemiology; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D007492:Iran / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D015203:Reproducibility of Results; D013223:Statistics as Topic; D011795:Surveys and Questionnaires / Q000592:standards*