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Comparative Study
. 2005 Dec 14:5:46.
doi: 10.1186/1471-244X-5-46.

The Hospital Anxiety and Depression Rating Scale: a cross-sectional study of psychometrics and case finding abilities in general practice

Ingrid Olssøn  1 , Arnstein Mykletun, Alv A Dahl
Affiliations
Comparative Study

The Hospital Anxiety and Depression Rating Scale: a cross-sectional study of psychometrics and case finding abilities in general practice

Ingrid Olssøn et al. BMC Psychiatry. .

Abstract

Background: General practitioners' (GPs) diagnostic skills lead to underidentification of generalized anxiety disorders (GAD) and major depressive episodes (MDE). Supplement of brief questionnaires could improve the diagnostic accuracy of GPs for these common mental disorders. The aims of this study were to examine the usefulness of The Hospital Anxiety and Depression Rating Scale (HADS) for GPs by: 1) Examining its psychometrics in the GPs' setting; 2) Testing its case-finding properties compared to patient-rated GAD and MDE (DSM-IV); and 3) Comparing its case finding abilities to that of the GPs using Clinical Global Impression-Severity (CGI-S) rating.

Methods: In a cross-sectional survey study 1,781 patients in three consecutive days in September 2001 attended 141 GPs geographically spread in Norway. Sensitivity, specificity, optimal cut off score, and Area under the curve (AUC) for the HADS and the CGI-S were calculated with Generalized Anxiety Questionnaire (GAS-Q) as reference standard for GAD, and Depression Screening Questionnaire (DSQ) for MDE.

Results: The HADS-A had optimal cut off > or =8 (sensitivity 0.89, specificity 0.75), AUC 0.88 and 76% of patients were correctly classified in relation to GAD. The HADS-D had by optimal cut off > or =8 (sensitivity 0.80 and specificity 0.88) AUC 0.93 and 87% of the patients were correctly classified in relation to MDE. Proportions of the total correctly classified at the CGI-S optimal cut-off > or =3 were 83% of patients for GAD and 81% for MDE.

Conclusion: The results indicate that addition of the patients' HADS scores to GPs' information could improve their diagnostic accuracy of GAD and MDE.

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Figures

Figure 1
Figure 1
Flow chart study design.
Figure 2
Figure 2
Receiver Operating Curves for HADS-A and CGI-S for detecting GAD.
Figure 3
Figure 3
Receiver Operating Curves for HADS-D and CGI-S for detecting MDE.
See this image and copyright information in PMC

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