Descriptive Epidemiology of Generalized Anxiety Disorder in Canada

Objective: The first national survey to assess the prevalence of generalized anxiety disorder (GAD) in Canada was the 2012 Canadian Community Health Survey: Mental Health and Well-Being (CCHS-MH). The World Mental Health Composite International Diagnostic Interview (WMH-CIDI), used within the repres...

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Bibliographic Details
Published in:Canadian journal of psychiatry 2017-01, Vol.62 (1), p.24-29
Main Authors: Watterson, Rita A., Williams, Jeanne V. A., Lavorato, Dina H., Patten, Scott B.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age Factors
Aged
Anxiety Disorders - epidemiology
Canada - epidemiology
Comorbidity
Cross-Sectional Studies
Female
Humans
Income - statistics & numerical data
Male
Mental Disorders - epidemiology
Middle Aged
Original Research
Prevalence
Sex Factors
Socioeconomic Factors
Unemployment - statistics & numerical data
Young Adult
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Summary:Objective: The first national survey to assess the prevalence of generalized anxiety disorder (GAD) in Canada was the 2012 Canadian Community Health Survey: Mental Health and Well-Being (CCHS-MH). The World Mental Health Composite International Diagnostic Interview (WMH-CIDI), used within the representative sample of the CCHS-MH, provides the best available description of the epidemiology of this condition in Canada. This study uses the CCHS-MH data to describe the epidemiology of GAD. Method: The analysis estimated proportions and odds ratios and used logistic regression modelling. All results entailed appropriate sampling weights and bootstrap variance estimation procedures. Results: The lifetime prevalence of GAD is 8.7% (95% CI, 8.2% to 9.3%), and the 12-month prevalence is 2.6% (95% CI, 2.3% to 2.8%). GAD is significantly associated with being female (OR 1.6; 95% CI, 1.3 to 2.1); being middle-aged (age 35-54 years) (OR 1.6; 95% CI, 1.0 to 2.7); being single, widowed, or divorced (OR 1.9; 95% CI, 1.4 to 2.6); being unemployed (OR 1.9; 95% CI, 1.5 to 2.5); having a low household income (
ISSN:0706-7437
1497-0015
DOI:10.1177/0706743716645304