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J Affect Disord. 2013 Jan 10;144(1-2):94-100. doi: 10.1016/j.jad.2012.06.011. Epub 2012 Aug 9.

Prevalence of depression and anxiety in older users of formal Dutch intellectual disability services.

Author information

1
Intellectual Disability Medicine, Department of General Practice, Erasmus University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands. h.hermans.1@erasmusmc.nl

Abstract

BACKGROUND:

Little is known about the prevalence of depression and anxiety among older people with intellectual disabilities (ID). Therefore, the aim of this study was to study the prevalence of depression and anxiety in this population.

METHOD:

This study is a cross-sectional epidemiologic multicentre study which was part of the "Healthy Ageing and Intellectual Disabilities" study. The study population consisted of 990 participants aged ≥50 years with borderline to profound ID which were screened with self-report and informant-report instruments; 290 of them were assessed with a standardized diagnostic interview.

RESULTS:

Depressive symptoms were prevalent in 16.8% (95% CI: 14.4-19.1) and significantly associated with higher age. Anxiety symptoms were prevalent in 16.3% (95% CI: 14.0-18.6) and significantly associated with female gender and borderline to mild ID. Major depressive disorder was prevalent in 7.6% (95% CI: 5.2-11.0), anxiety disorders in 4.4% (95% CI: 2.6-7.0) and both in 0.7% (95% CI: 0.2-1.6). There was no relationship with gender, age or level of ID.

LIMITATIONS:

For most participants, informant-report instruments have been used instead of self-report to overcome communication difficulties or inabilities. Also, a standardized psychiatric diagnostic interview has been used instead of psychiatric diagnoses made by an experienced psychiatrist.

CONCLUSION:

Prevalence of major depressive disorder is higher and of anxiety disorders lower than in the Dutch general older community-dwelling population.

PMID:
22884239
DOI:
10.1016/j.jad.2012.06.011
[Indexed for MEDLINE]
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