Cross-cultural adaptation and validation of Diabetes Quality of Life Brief Clinical Inventory in Turkish patients with type 2 diabetes mellitus

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2024

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Taylor & Francis Ltd

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Abstract

PurposeTo translate and culturally adapt the Diabetes Quality of Life Brief Clinical Inventory (DQoL-BCI) into Turkish and assess the psychometric properties of the translated version.MethodsA forward-backward translation process was conducted in conformity with international guidelines. A total of 150 patients with type 2 diabetes mellitus (T2DM) completed the Turkish version of DQoL-BCI (DQoL-BCI-Tr). The factor structure, test-retest reliability, and construct validity were evaluated.ResultsIn the DQoL-BCI-Tr, the three-factor structure was found optimal and explained 68.7% of the variance. The DQoL-BCI-Tr showed excellent internal consistency (Cronbach's alpha = 0.90) and test-retest reliability (ICC = 0.98). Cronbach's alpha values ranged from 0.85 to 0.91 for subscales (satisfaction, worry, impact). A negative correlation was found between the total scores of the DQoL-BCI-Tr and the EuroQoL-5 dimensions (EQ-5D) indexes (r= -0.22, p < 0.01). The DQoL-BCI-Tr total score and satisfaction and worry subscale scores differentiated between groups defined by glycated hemoglobin (HbA(1c)>9%) and the use of insulin.ConclusionsThe study results showed that the DQoL-BCI-Tr can be served as a reliable and valid instrument to obtain information from Turkish patients with T2DM diagnosis, including satisfaction with treatment, the impact of the disease, and worry about the social/vocational issues.

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Kara, İlke/0000-0003-4974-533X; ozturk, ozgul/0000-0002-5207-1893; Çevik Saldıran, Tülay/0000-0003-4048-1251; Burroughs, Thomas/0009-0003-0784-5954; Guvendi, Habibe Rumeysa/0000-0002-8670-9170; dincer, erhan/0000-0002-4060-8067

Keywords

Validity, reliability, patient satisfaction, health impact assessment, questionnaires

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Volume

46

Issue

5

Start Page

995

End Page

1004