Prevalence and correlates of generalized anxiety disorder among older adults in the Australian National Survey of Mental Health and Well-Being

Goncalves, Daniela C., Pachana, Nancy A. and Byrne, Gerard J. (2011) Prevalence and correlates of generalized anxiety disorder among older adults in the Australian National Survey of Mental Health and Well-Being. Journal of Affective Disorders, 132 1-2: 223-230. doi:10.1016/j.jad.2011.02.023


Author Goncalves, Daniela C.
Pachana, Nancy A.
Byrne, Gerard J.
Title Prevalence and correlates of generalized anxiety disorder among older adults in the Australian National Survey of Mental Health and Well-Being
Journal name Journal of Affective Disorders   Check publisher's open access policy
ISSN 0165-0327
1573-2517
Publication date 2011-07
Sub-type Article (original research)
DOI 10.1016/j.jad.2011.02.023
Volume 132
Issue 1-2
Start page 223
End page 230
Total pages 8
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Collection year 2012
Language eng
Formatted abstract
Background

Generalized anxiety disorder (GAD) occurs commonly, with widespread consequences including decreased functioning and wellbeing, and increased consumption of health resources. Notwithstanding its prevalence and impact, knowledge about GAD in older adults is still scarce. Accordingly, the main goals of this study were to estimate the prevalence and analyze the correlates of 12-month DSM-IV GAD in older community-residing adults.

Methods

The sample was drawn from the 2007 Australian National Survey of Mental Health and Well-Being and consisted of 3035 participants aged between 55 and 85 years, assessed by lay interviewers with the fully-structured Composite International Diagnostic Interview.

Results


Eighty-four participants were diagnosed with GAD, equivalent to a weighted 12-month population prevalence of 2.8% (95% CI: 2.0, 3.7). In a multivariate logistic regression model older age (OR = 0.24, p = 0.006), functional limitations (OR = 1.07, p = 0.001), lifetime depression comorbidity (OR = 5.31, p < 0.001), concerns about having a serious illness despite doctor's reassurance (OR = 2.29, p = 0.021), and family history of anxiety or depression (OR = 2.41, p = 0.007) were the most significant predictors of 12-month GAD in older adults.

Limitations


This was a cross sectional study, limiting causal inferences.

Conclusions

In community-residing older adults GAD is highly prevalent and strongly associated with functional limitations, psychiatric comorbidity and increased medication intake. These findings suggest the need for greater clinical awareness of GAD among older adults.
Keyword Aging
Generalized anxiety disorder
Older adult
Cidi
Late-Life
Survey-Replication
Major Depression
Risk-Factors
Dsm-IV
Disability
Comorbidity
Patterns
Disease
Span
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Medicine Publications
School of Psychology Publications
 
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