Feasibility, reliability and validity of the Iranian version of the Diabetes Quality of Life Brief Clinical Inventory (IDQOL-BCI).
OBJECTIVE
To validate and culturally adapt the Diabetes-specific Quality of Life Brief Clinical Inventory (DQOL-BCI) for the Iranian population.


METHODS
After translation - back translation, content validity was assessed utilizing a panel of six experts. Based on a sample of 180 diabetic patients referred to two Diabetics Clinic Centers from September to May 2011 in Karaj, Iran, construct validity via detecting the factor structure, and convergent and discriminant validity were evaluated by scale-item correlations and known group analyses. Internal consistency and test-retest reliability were assessed in sample of 30 patients by Cronbach's and intraclass correlation coefficient (ICC).


RESULTS
The IDQOL-BCI showed good content validity (CVI values>0.75 and CVR values>0.99), internal consistency (α=0.75) and test-retest reliability (ICC=0.81). A 3-factor solution was found. In addition, high values of item-scale correlations confirmed the convergence validity, and some subscales and total scores differentiate between groups defined by sex, disease duration, income levels, drug using status and physical activity demonstrated the discriminant validity.


CONCLUSIONS
Our findings demonstrate the initial feasibility, reliability and validity of the Iranian version of the IDQOL-BCI as a measure of diabetic-specific QOL measure in Iranian patients.
Department of Midwifery, Karaj Branch, Islamic Azad University, Karaj, Iran.
Mani
M
Mirfeizi
Mohammad Asghari
MA
Jafarabadi
Zahra Mehdizadeh
ZM
Toorzani
Seyede Momeneh
SM
Mohammadi
Mozhgan Dehghan
MD
Azad
Adeleh Vizheh
AV
Mohammadi
Ziba
Z
Teimori
D000328:Adult; D000368:Aged; D003920:Diabetes Mellitus / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007492:Iran; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D011795:Surveys and Questionnaires