Title

Comparative performance of long and short forms of the geriatric depression scale in mildly demented Chinese

Document Type

Journal article

Source Publication

International Journal of Geriatric Psychiatry

Publication Date

12-1-2005

Volume

20

Issue

12

First Page

1131

Last Page

1137

Keywords

Chinese, Dementia, Depression, Elderly, Geriatric depression scale

Abstract

Objective: This study aims to investigate if a brief version (four items) of the Geriatric Depression Scale works equally well with mildly demented as with nondemented patients in young-old and old-old persons, and to compare its diagnostic performances with those of the 15- and the 30-item version of the scale.

Method: Four hundred and forty-two older persons were given a GDS interview and received an independent psychiatric evaluation. Receiver operating characteristic curves were separately plotted for the young-old demented, old-old demented, young-old nondemented, and old-old nondemented.

Results: The four-item version yielded comparable performance to the 15- and the 30-item version of the GDS, regardless of age and dementia status. It is reasonably robust to the effects of age and mild dementia, whether alone or in combination. Nonetheless, among the old-old demented, only a third of those tested positive were actually positive, but this problem was not specific to the four-item version.

Conclusions: The four-item version can be used in lieu of the longer versions to conserve clinical and research resources where appropriate, and a cutoff of 1/2 can be applied across the board. Little, if any, information is lost when this brief version is used instead of the longer ones.

DOI

10.1002/gps.1405

Print ISSN

08856230

E-ISSN

10991166

Publisher Statement

Copyright © 2005 John Wiley & Sons, Ltd

Access to external full text or publisher's version may require subscription.

Full-text Version

Publisher’s Version

Recommended Citation

Cheung, S.-T., & Chan, A. C. M. (2005). Comparative performance of long and short forms of the geriatric depression scale in mildly demented Chinese. International Journal of Geriatric Psychiatry, 20(12), 1131-1137. doi: 10.1002/gps.1405