Edinburgh Depression Scale in Type 2 Diabetes Patients
Author Information
Author(s): de Cock Evi SA, Emons Wilco HM, Nefs Giesje, Pop Victor JM, Pouwer François
Primary Institution: Tilburg University, Tilburg, The Netherlands
Hypothesis
The study aims to investigate the measurement properties of the Edinburgh Depression Scale (EDS) in patients with type 2 diabetes mellitus.
Conclusion
The EDS is a reliable tool for measuring depression in patients with type 2 diabetes, applicable to both males and females.
Supporting Evidence
- The EDS was found to be unidimensional and reliable for measuring depression.
- Three items showed differential item functioning, but this did not significantly affect the overall scale.
- Anhedonia and sleeping problems were the most informative indicators for differentiating depression severity.
Takeaway
This study shows that a questionnaire can help doctors find out if people with diabetes are feeling very sad or depressed.
Methodology
The study used factor analysis and item response theory to examine the dimensionality, gender-related item bias, and screening properties of the EDS.
Potential Biases
Significant differential item functioning was found for some items, but it had little practical impact on the overall results.
Limitations
The study did not include clinical diagnoses from psychiatric interviews, which limits the ability to calculate sensitivity and specificity.
Participant Demographics
The sample consisted of 1,656 patients, 50% male, with a mean age of 66 years.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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