Psychometric properties and factor structure of the diabetes eatıng problem survey- revised (DEPS-R) among adults with type 1 diabetes mellitus
2023
Yasemin Atik-Altınok | Beyza Eliuz-Tipici | Cemile İdiz | Su Özgür | Ayşe Merve Ok | Kubilay Karşıdağ
Abstract Background and objective Although many studies on the Diabetes Eating Problem Survey–Revised (DEPS-R) in adolescents with type 1 diabetes mellitus (T1D), the number of studies validating this questionnaire in adults with T1D is limited. Therefore, this study aimed to examine the factor structure of the Turkish version of the DEPS-R in adults with T1D and internal consistency and construct validity. Methods A total of 100 patients with T1D, ages 18–50 years, completed the DEPS-R and EDE-Q. In addition to tests of validity, confirmatory factor analysis was conducted to investigate the factor structure of the 6-item Turkish version of DEPS-R. Results The Cronbach’s alpha coefficient of the DEPS-R Turkish version was 0.77, suggesting good internal consistency. The median (IQ) DEPS-R score was 15.0 (13.0) among all participants. DEPS-R score was significantly correlated with BMI (r = 0.210; p < 0.05) and EDE-Q (r = 0.586; p < 0.01). There was no correlation between the HbA1c values of participants and neither EDE-Q nor DEPS-R scores. The confirmatory factor analysis results show that the three-factor model was a good fit. Conclusion A short, self-administered diabetes-specific screening tool for disordered eating behavior is recommended be used routinely in the clinical care of adults with T1D, and Turkish version of DEPS-R has acceptable internal consistency and construct validity in adults with T1D. Level of evidence Level V, descriptive study. Clinicaltrials.gov registration number NCT05346679/ 21.04.2022 (retrospectively registered)
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