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Related Experiment Video

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Design and Implementation of an fMRI Study Examining Thought Suppression in Young Women with, and At-risk, for Depression

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Published on: May 19, 2015

Major depression prevalence in Calgary.

¹Alberta Heritage Foundation for Medical Research, University of Calgary, Calgary, Alberta. patten@ucalgary.ca

Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie

|February 24, 2001

Summary

This summary is machine-generated.

The 12-month prevalence of major depression in Calgary was estimated at approximately 11.0%. This finding suggests a potentially higher rate compared to some Canadian studies, warranting further investigation into diagnostic methods.

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Area of Science:

Epidemiology
Psychiatry
Public Health

Background:

Estimating the prevalence of major depressive disorder (MDD) is crucial for public health planning and resource allocation.
Previous Canadian prevalence studies have yielded varying results, necessitating localized data.
Understanding the epidemiology of depression in urban centers like Calgary is important for targeted interventions.

Purpose of the Study:

To determine the 12-month period prevalence of major depression in the adult population of Calgary.
To compare Calgary's depression prevalence with existing Canadian and international estimates.
To explore potential factors influencing prevalence rates, including methodology.

Main Methods:

A random digit dialing (RDD) methodology was employed to select a representative sample of 2,542 Calgary residents.
Telephone interviews were conducted using the Composite International Diagnostic Interview-Short Form for Major Depression (CIDI-SFMD).
A subset underwent a more comprehensive assessment using the full mood disorders section of the CIDI for validation.

Main Results:

The initial screening indicated that 14.7% of the sample scored positively for major depression predictors.
Validation data suggested that approximately 75% of these individuals would meet the diagnostic criteria for major depression.
The estimated 12-month period prevalence of major depression in Calgary was calculated to be approximately 11.0%.

Conclusions:

The estimated 11.0% 12-month prevalence of major depression in Calgary is higher than some previous Canadian estimates but comparable to the US National Comorbidity Survey.
While Calgary may exhibit a high prevalence, definitive conclusions are premature due to a lack of methodologically similar studies.
Potential selection bias from RDD sampling and nonresponse, or increased sensitivity of telephone interviews to psychopathology, may have influenced the findings.