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Community Survey of Bipolar Disorder in Canada: Lifetime Prevalence and Illness Characteristics
- Source :
- The Canadian Journal of Psychiatry. 51:9-16
- Publication Year :
- 2006
- Publisher :
- SAGE Publications, 2006.
-
Abstract
- Objective: This study reports on the lifetime prevalence and illness characteristics of bipolar disorder (BD) in a large, representative sample of Canadians. Method: Data were obtained from the Canadian Community Health Survey: Mental Health and Well-Being. This representative, cross-sectional survey, conducted by Statistics Canada in 2002, examines the mental health of Canadians aged 15 years and over. The national response rate was 77%. We determined the prevalence rate of BD, correlates of a bipolar diagnosis, and illness characteristics. Results: The weighted lifetime prevalence rate of BD was 2.2% (95% confidence interval [CI], 1.94% to 2.37%). Younger age, low income adequacy, lifetime anxiety disorder, and presence of a substance use disorder in the past 12 months were each significantly associated with the presence of a BD diagnosis ( P < 0.001 for each). The largest effect found was for the presence of an anxiety disorder (odds ratio 7.94; 95%CI, 6.35 to 9.92). A lifetime history of anxiety disorder was reported by 51.8% (95%CI, 47.1% to 56.5%) of the respondents with BD, with both panic disorder and agoraphobia each being more frequent among women, compared with men ( P = 0.01 and P < 0.001, respectively). The mean age at onset of illness was 22.5 years, SD 12.0. Conclusions: According to the estimated lifetime prevalence of BD found in this study, over 500 000 Canadians likely suffer from this condition. Identifying those at highest risk for BD may assist in developing more effective community-based identification and intervention strategies.
- Subjects :
- Adult
Male
Canada
medicine.medical_specialty
Bipolar Disorder
Adolescent
Substance-Related Disorders
Cross-sectional study
Statistics as Topic
Comorbidity
Personality Assessment
medicine
Humans
Bipolar disorder
Psychiatry
Aged
Data Collection
Incidence
Panic disorder
Age Factors
Reproducibility of Results
Odds ratio
Middle Aged
medicine.disease
Anxiety Disorders
Diagnostic and Statistical Manual of Mental Disorders
Psychiatry and Mental health
Cross-Sectional Studies
Socioeconomic Factors
Female
Age of onset
Psychology
Anxiety disorder
Agoraphobia
Demography
Subjects
Details
- ISSN :
- 14970015 and 07067437
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- The Canadian Journal of Psychiatry
- Accession number :
- edsair.doi.dedup.....351b61a55eb1cba90fe23f2226f8bd4e