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Published in: Health and Quality of Life Outcomes 1/2005

Open Access 01-12-2005 | Research

Factor structure of the Hospital Anxiety and Depression Scale (HADS) in German coronary heart disease patients

Authors: Jürgen Barth, Colin R Martin

Published in: Health and Quality of Life Outcomes | Issue 1/2005

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Abstract

Background

Depression and anxiety in patients with coronary heart disease (CHD) are associated with a poorer prognosis. Therefore the screening for psychological distress is strongly recommended in cardiac rehabilitation. The Hospital Anxiety and Depression Scale (HADS) is a widely used screening tool that has demonstrated good sensitivity and specificity for mental disorders.

Methods

We assessed mental distress in in-patient cardiac rehabilitation in Germany. The factor structure of the German language version of the HADS was investigated in 1320 patients with CHD. Exploratory factor analysis and confirmatory factor analysis were used to determine the underlying factor structure of the instrument.

Results

Three-factor models were found to offer a superior fit to the data compared to two-factor (anxiety and depression) models. The German language HADS performs similarly to the English language version of the instrument in CHD patients. The German language HADS fundamentally comprises a tri-dimensional underlying factor structure (labelled by Friedman et al. as psychomotor agitation, psychic anxiety and depression).

Conclusion

Despite of clinical usefulness in screening for mental disturbances the construct validity of the HADS is not clear. The resulting scores of the tri-dimensional model can be interpreted as psychomotor agitation, psychic anxiety, and depression in individual patient data or clinical investigations.
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Metadata
Title
Factor structure of the Hospital Anxiety and Depression Scale (HADS) in German coronary heart disease patients
Authors
Jürgen Barth
Colin R Martin
Publication date
01-12-2005
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2005
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/1477-7525-3-15

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