Title

Prevalence and structure of anxiety-depression in an Australian community sample

Date of this Version

2016

Document Type

Journal Article

Publication Details

Citation only

Sharpley, C. F., Bitsika, V., Jesulola, E., & Agnew, L. L. (2016). Prevalence and structure of anxiety-depression in an Australian community sample. Archives of Psychiatry and Psychotherapy, 18(2), 29-39.

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Copyright of Archives of Psychiatry & Psychotherapy is the property of Editorial Committee of Polish Psychiatric Association

ISSN

1509-2046 print, 2083-828X online

Abstract

Summary

Aims: To describe the prevalence and factor structure of anxiety-depression in a community sample and to derive indicators for treatment planning.

Method: A sample of 398 members of the electoral roll for the New England region of Australia were recruited at random and completed the Zung Self-Rating Anxiety Scale and the Zung Self-Rating Depression Scale.

Results: The prevalence of anxiety-depression was 28.1%, over twice that for either anxiety or depression alone. The anxiety-depression construct comprised four underlying factors: cognitive agitation and depressed mood, pessimism, cardiovascular reactivity, pain and sleep disturbance. There were different patterns of these four factors across anxiety-only, depression-only and combined anxiety-depression, with evidence of a unique symptomatological profile in participants with clinically significant levels of anxiety-depression.

Conclusions: Treatment decisions for anxiety and depression need to go beyond consideration of the two disorders separately to include the underlying factor severity of the combined construct of anxiety-depression.

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This document has been peer reviewed.