tbzmedTabriz University of Medical SciencesJARCMJournal of Analytical Research in Clinical MedicineOriginal ResearchJournal of Analytical Research in Clinical MedicineReliability and validity of the Persian version of the Kessler psychological distress scale among patients with type 2 diabetesPersian version of the K10 scaleAtaeiJafar, ShamshirgaranSeyed Morteza Tabriz University of Medical Sciences, Faculty of Health Sciences, Tabriz University of Medical SciencesIranparvarManochehr , SafaeianAbdolrasool , MalekAyyoub, 6201596201532232015Tabriz University of Medical Sciences2015Reliability and validity of the Persian version of the Kessler psychological distress scale among patients with type 2 diabetes

Introduction: Prevalence of depression in patients with diabetes is 2-3 times more than patients without diabetes. Hence, the aim of the current study was to evaluate the reliability and validity of Persian version of the 10-item Kessler Scale (K10) in assessment of mental health status among patients with type 2 diabetes in Ardabil, Northwest of Iran. Methods: This cross-sectional methodological study was conducted in Ardabil on a total of 70 patients with type 2 diabetes. K10 was translated into Persian by backward-forward method, and content validity was evaluated by a panel of experts in the field of psychiatry, psychology and epidemiology. Concurrent validity examined by the correlation between K10 and general health questionnaire-12 (GHQ-12). The reliability and stability evaluated by Cronbach¢s alpha and intraclass correlation coefficient (ICC) (test-retest method). The total score was computed from 10-items, which were classified into four categories (well, mild, moderate and severe). The analysis was performed using SPSS the level of significance was set at 0.05. Results: The total average content validity ratio (CVR) and content validity index (CVI) were 0.88 and 0.95; correlation between K10 and GHQ-12 was significant (r = 0.63, P < 0.001), hence, the content and concurrent validity of K10 Persian version was confirmed. Reliability was tested by Cronbach¢s alpha = 0.84 and ICC = 0.77, respectively. Conclusion: The Persian version of K10 is valid and reliable for evaluation of mental health status among patients with type 2 diabetes.