title: Translation, cultural adaptation, cross-validation of the Turkish diabetes quality-of-life (DQOL) measure.
abstract: OBJECTIVE
  The aim of this study was to test the validity and reliability of the Turkish version of the diabetes quality of life (DQOL) questionnaire for use with patients with diabetes.
  
  
  METHODS
  Turkish version of the generic quality of life (QoL) scale 15D and DQOL, socio-demographics and clinical parameter characteristics were administered to 150 patients with type 2 diabetes. Study participants were randomly sampled from the Endocrinology and Diabetes Outpatient Department of Dr. Lutfi Kirdar Kartal Education and Research Hospital in Istanbul, Turkey.
  
  
  RESULTS
  The Cronbach alpha coefficient of the overall DQOL scale was 0.89; the Cronbach alpha coefficient ranged from 0.80 to 0.94 for subscales. Distress, discomfort and its symptoms, depression, mobility, usual activities, and vitality on the 15 D scale had statistically significant correlations with social/vocational worry and diabetes-related worry on the DQOL scale indicating good convergent validity. Factor analysis identified four subscales: satisfaction", impact", "diabetes-related worry", and "social/vocational worry".
  
  
  CONCLUSIONS
  Statistical analyses showed that the Turkish version of the DQOL is a valid and reliable instrument to measure disease related QoL in patients with diabetes. It is a simple and quick screening tool with about 15 +/- 5.8 min administration time for measuring QoL in this population.
authors.affiliation: Dr. Lutfi Kirdar Kartal Education and Research Hospital, Istanbul, Turkey.
authors.forename: Aysegul
authors.initials: A
authors.lastname: Yildirim
authors.forename: Fevzi
authors.initials: F
authors.lastname: Akinci
authors.forename: Hulya
authors.initials: H
authors.lastname: Gozu
authors.forename: Haluk
authors.initials: H
authors.lastname: Sargin
authors.forename: Ekrem
authors.initials: E
authors.lastname: Orbay
authors.forename: Mehmet
authors.initials: M
authors.lastname: Sargin
mesh_terms: D003142:Communication; D003469:Culture; D003924:Diabetes Mellitus, Type 2 / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000295:instrumentation*; D011788:Quality of Life; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires; D014177:Translations; D014421:Turkey