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

Saldiran T. C., Kara İ., Dincer E., Ozturt O., Cakici R., Burroughs T.

DISABILITY AND REHABILITATION, vol.46, no.5, pp.995-1004, 2024 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 5
  • Publication Date: 2024
  • Doi Number: 10.1080/09638288.2023.2182917
  • Journal Name: DISABILITY AND REHABILITATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus, Academic Search Premier, ASSIA, AgeLine, CINAHL, Educational research abstracts (ERA), EMBASE, Linguistics & Language Behavior Abstracts, MEDLINE, Psycinfo, Public Affairs Index, SportDiscus, Violence & Abuse Abstracts
  • Page Numbers: pp.995-1004
  • Keywords: health impact assessment, patient satisfaction, questionnaires, reliability, Validity
  • Dokuz Eylül University Affiliated: Yes

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.