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Cannabis May Help Reduce PTSD-Related Depression, Suicide

A new analysis of health survey data from more than 24,000 Canadians, suggests cannabis may be helping residents cope with the effects of post-traumatic stress disorder (PTSD).

Researchers found that people who have PTSD but do not medicate with cannabis are far more likely to suffer from severe depression and have suicidal thoughts than those who reported cannabis use over the past year.

Investigators from the British Columbia Centre on Substance Use (BCCSU) and University of British Columbia (UBC) analyzed health survey data collected by Statistics Canada. The study appears in the Journal of Psychopharmacology.

The research is the first to document the relationships between PTSD, cannabis use, and severe mental health outcomes in a sample representative of the population.

“We know that with limited treatment options for PTSD, many patients have taken to medicating with cannabis to alleviate their symptoms,” says lead author Stephanie Lake, a research assistant at the BCCSU and PhD candidate at UBC’s school of population and public health.

“However, this is the first time that results from a nationally representative survey have shown the potential benefits of treating the disorder with cannabis.”

Data was obtained from Statistics Canada’s 2012 Canadian Community Health Survey – Mental Health (CCHS-MH), which covers Canadians aged 15 and older. Among 24,089 eligible respondents, 420 reported a current clinical diagnosis of PTSD.

In total, 106 people with PTSD, or 28.2%, reported past-year cannabis use, compared to 11.2% of those without PTSD.

The researchers found that PTSD was significantly associated with a recent major depressive episode and suicidal ideation among people who don’t use cannabis.

Specifically, cannabis non-users with PTSD were about seven times more likely to have experienced a recent major depressive episode and 4.7 times more likely to have thoughts of suicide compared to cannabis non-users without PTSD, the researchers found.

Among cannabis-using respondents, PTSD was not associated with a recent depressive episode or suicide ideation.

Over one-quarter of Canadians with PTSD reported past-year cannabis use, which is remarkably high compared to the prevalence of recent use in the general Canadian population (estimated at 11.4% in the present study).

Experts explain that people exposed to trauma, including survivors of acute injury, conflict, violence and disaster, suffer from depression, suicide, and substance use disorders at disproportionately high rates compared to the general population.

Canada is estimated to have one of the highest prevalence rates of PTSD worldwide, affecting an estimated 9.2% of the population.

“We’re only just beginning to understand what the therapeutic potential of cannabis may be for a variety of health conditions,” says senior author Dr. M-J Milloy, a research scientist at BCCSU.

“These findings are promising, and merit further study in order to fully understand the benefits of cannabis for people living with PTSD.”

Source: University of British Columbia

Cannabis May Help Reduce PTSD-Related Depression, Suicide

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2019). Cannabis May Help Reduce PTSD-Related Depression, Suicide. Psych Central. Retrieved on December 12, 2019, from https://psychcentral.com/news/2019/11/15/cannabis-may-help-reduce-ptsd-related-depression-suicide/151603.html
Scientifically Reviewed
Last updated: 15 Nov 2019 (Originally: 15 Nov 2019)
Last reviewed: By a member of our scientific advisory board on 15 Nov 2019
Published on Psych Central.com. All rights reserved.