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Updated: Jun 30, 2026

Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment

Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment

Published on: December 6, 2024

Post-traumatic stress disorder in Canada.

Michael Van Ameringen¹, Catherine Mancini, Beth Patterson

¹Anxiety Disorders Clinic, McMaster University Medical Centre, Department of Psychiatry and Behavioural Neurociences, McMaster University, Hamilton, Ontario, Canada. vanamer@mcmaster.ca

CNS Neuroscience & Therapeutics

|September 20, 2008

Summary

This summary is machine-generated.

Post-traumatic stress disorder (PTSD) is a significant mental health concern in Canada, affecting 9.2% of adults lifetime and 2.4% currently. This study highlights the disorder's prevalence and associated conditions across the nation.

Related Experiment Videos

Last Updated: Jun 30, 2026

Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment

Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment

Published on: December 6, 2024

Area of Science:

Psychiatry
Epidemiology
Mental Health

Background:

Post-traumatic stress disorder (PTSD) is a global health issue with varied prevalence.
Limited recent data exists on PTSD prevalence in Canada.
Understanding PTSD and its comorbidities in Canada is crucial for public health.

Purpose of the Study:

To determine the prevalence of lifetime and current Post-traumatic stress disorder (PTSD) in Canada.
To examine comorbid conditions associated with PTSD in the Canadian population.
To investigate the types of traumatic events leading to PTSD in Canada.

Main Methods:

A nationally representative sample of 2991 Canadians (aged 18+) was surveyed via telephone.
Modified versions of the Composite International Diagnostic Interview (CIDI) and Mini International Neuropsychiatric Interview (MINI) were used.
The Childhood Trauma Questionnaire (CTQ) was also incorporated to assess trauma history.

Main Results:

The lifetime prevalence of PTSD in Canada was estimated at 9.2%, with a current (1-month) prevalence of 2.4%.
A significant majority (76.1%) reported exposure to at least one traumatic event.
Common trauma types included unexpected death, sexual assault, and witnessing injury or death; PTSD symptoms were chronic and linked to impairment and comorbidity.

Conclusions:

Post-traumatic stress disorder (PTSD) is a common psychiatric disorder in Canada.
The high prevalence is notable given Canada's lower rates of violent crime, smaller military, and fewer natural disasters.
Findings underscore the need for increased awareness and intervention strategies for PTSD in Canada.