Hospital Anxiety and Depression Scale (HADS): validation in a Greek general hospital sample

doi:10.1186/1744-859X-7-4

Annals of General Psychiatry

Volume 7

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Michopoulos I
Douzenis A
Kalkavoura C
Christodoulou C
Michalopoulou P
Kalemi G
Fineti K
Patapis P
Protopapas K
Lykouras L

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Michopoulos I
Douzenis A
Kalkavoura C
Christodoulou C
Michalopoulou P
Kalemi G
Fineti K
Patapis P
Protopapas K
Lykouras L
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Primary research

Hospital Anxiety and Depression Scale (HADS): validation in a Greek general hospital sample

Ioannis Michopoulos¹^* , Athanasios Douzenis¹^* , Christina Kalkavoura¹^* , Christos Christodoulou¹^* , Panayiota Michalopoulou¹^* , Georgia Kalemi¹^* , Katerina Fineti¹^* , Paulos Patapis²^* , Konstantinos Protopapas³^* and Lefteris Lykouras¹

¹Second Department of Psychiatry, Athens University Medical School, 'Attikon' General Hospital, Athens, Greece

²Third Department of Surgery, University of Athens, School of Medicine, 'Attikon' University Hospital, Athens, Greece

³Fourth Department of Internal Medicine, University General Hospital 'Attikon', Athens, Greece

author email corresponding author email* Contributed equally

Annals of General Psychiatry 2008, 7:4doi:10.1186/1744-859X-7-4


Published:	6 March 2008

Abstract

Background

The Hospital Anxiety and Depression Scale (HADS) has been used in several languages to assess anxiety and depression in general hospital patients with good results.

Methods

The HADS was administered to 521 participants (275 controls and 246 inpatients and outpatients of the Internal Medicine and Surgical Departments in 'Attikon' General Hospital in Athens). The Beck Depression Inventory (BDI) and the State-Trait Anxiety Inventory (STAI) were used as 'gold standards' for depression and anxiety respectively.

Results

The HADS presented high internal consistency; Cronbach's α cofficient was 0.884 (0.829 for anxiety and 0.840 for depression) and stability (test-retest intraclass correlation coefficient 0.944). Factor analysis showed a two-factor structure. The HADS showed high concurrent validity; the correlations of the scale and its subscales with the BDI and the STAI were high (0.722 – 0.749).

Conclusion

The Greek version of HADS showed good psychometric properties and could serve as a useful tool for clinicians to assess anxiety and depression in general hospital patients.