Related Experiment Videos
A validation study of the Cardiac Depression Scale (CDS) in a UK population
Yvonne Birks1, Alun Roebuck, David R Thompson
1University of York, UK.
Insights
The Cardiac Depression Scale (CDS) reliably measures depression in UK cardiac patients. This validated instrument demonstrates sensitivity and accuracy for assessing mental health in individuals with coronary heart disease.
Area of Science:
- Cardiology
- Psychiatry
- Psychometrics
Background:
- Depression is a common comorbidity in patients with coronary heart disease (CHD).
- Accurate assessment of depression is crucial for effective management of cardiac patients.
Purpose of the Study:
- To validate the Cardiac Depression Scale (CDS) within a United Kingdom-based population of cardiac patients.
- To assess the reliability and validity of the CDS for measuring depression in this specific demographic.
Main Methods:
- A cohort of 487 individuals with CHD completed the CDS along with other established questionnaires (SF-36, BDI, HADS).
- A subsample of 80 participants underwent repeat testing for test-retest reliability analysis.
- Factor analysis and correlation analyses were employed to evaluate the scale's psychometric properties.
Main Results:
- The CDS demonstrated high internal reliability (Cronbach's alpha = 0.93) and acceptable test-retest reliability (0.79).
- Factor analysis supported a one-factor structure for the scale.
- Strong correlations were observed between the CDS and other validated measures, indicating concurrent validity.
Conclusions:
- The Cardiac Depression Scale (CDS) is a reliable and sensitive tool for assessing depression in patients with cardiac conditions.
- The CDS is suitable for use in UK cardiac populations, aiding in the identification and management of depression.
Objectives:
This study was designed to validate the Cardiac Depression Scale (CDS) in a UK cardiac population.
Method:
A battery of questionnaires (the Medical Outcomes Study Short-Form 36 [SF-36] Health Survey, the Beck Depression Inventory [BDI], the Hospital Anxiety and Depression Scale [HADS] and the Cardiac Depression Scale [CDS]) was mailed to 487 individuals with coronary heart disease (CHD) recruited from cardiac support groups. The process was repeated on a subsample of 80 participants four-six weeks later for the purpose of test-retest analysis.
Results:
The response rate from the first administration was 81% and from the test-retest subsample 54%. Factor analysis revealed a one-factor solution with a high internal reliability (Cronbach's alpha = 0.93) and an acceptable test-retest reliability (0.79). Concurrent validation against the SF-36, BDI and HADS demonstrated strong correlations.
Conclusions:
The CDS is both a reliable and sensitive instrument for measuring depression in cardiac patients.