Short Form of the Chinese Version Diabetes Quality of Life for Youth Scale A psychometric testing in Taiwanese adolescents with type 1 diabetes

OBJECTIVE-To test the psychometric properties of the short form of the Chinese version Diabetes Quality of Life for Youth scale (C-DQOLY-SF). RESEARCH DESIGN AND METHODS-A 30-item C-DQOLY-SF was administered to 371 adolescents with type 1 diabetes. Exploratory and confirmatory factor analysis, correlation with HbA(1c), internal consistency, and test-retest reliability were used to examine the psychometric characteristics of C-DQOLY-SF. RESULTS-A 25-item questionnaire with three correlated second-order factor structures best fitted data. Scores on the 25-item C-DQOLY-SF significantly correlated with HbA(1c) values. Cronbach's alpha and ICCs of each scale and subscale ranged from 0.77 to 0.90 and from 0.70 to 0.92, respectively. CONCLUSIONS-The C-DQOLY-SF has satisfactory reliability and validity. The C-DQOLY-SF can be conveniently used in clinical settings to assess the quality of life of adolescents with type 1 diabetes.