Prevalence of Posttraumatic Stress Disorder (PTSD) in Canada During the COVID-19 Pandemic: Results from the Survey on COVID-19 and Mental Health

Overview

Journal Health Promot Chronic Dis Prev Can

Date 2025 Jan 16

PMID 39817709

Authors

Murray Weeks

Danielle Marion

Anne-Marie Robert

R Nicholas Carleton

Affiliations

Soon will be listed here.

Abstract

Introduction: This study provides a descriptive overview of the prevalence of posttraumatic stress disorder (PTSD) in Canada, across sociodemographic characteristics, mental health-related variables and negative impacts of the COVID-19 pandemic.

Methods: Data were obtained from cycles 1 and 2 of the Survey on COVID-19 and Mental Health (SCMH), collected in fall 2020 (N = 14 689) and spring 2021 (N = 8032). The prevalence of PTSD was measured using the PTSD Checklist for DSM-5 (PCL-5) Cross-sectional associations were quantified using logistic regression, while controlling for sociodemographic characteristics.

Results: The overall prevalence of PTSD was 6.9%. Factors associated with higher PTSD prevalence were female gender; younger age; lower income (females only); living in an urban area; frontline worker status or not being at work in the past week (males only); fair or poor mental health; a weak sense of community belonging; symptoms of generalized anxiety disorder and major depressive disorder; suicidal ideation; heavy alcohol use; daily cannabis use; increased alcohol and cannabis use since the start of the pandemic; decreased alcohol consumption since the start of the pandemic (males only); concerns about violence in the home; and negative impacts of the pandemic.

Conclusion: PTSD prevalence in Canada varies significantly across sociodemographic groups and is more common among those with indicators of lower mental health and well-being, as well as those more adversely affected by the COVID-19 pandemic. Ongoing and enhanced surveillance of PTSD in Canada is important to better understand and address the burden and impacts of this condition.

References

Kessler R, Sonnega A, Bromet E, Hughes M, Nelson C . Posttraumatic stress disorder in the National Comorbidity Survey. Arch Gen Psychiatry. 1995; 52(12):1048-60. DOI: 10.1001/archpsyc.1995.03950240066012. View

Hong S, Kim H, Park M . Impact of COVID-19 on post-traumatic stress symptoms in the general population: An integrative review. Int J Ment Health Nurs. 2021; 30(4):834-846. PMC: 8250702. DOI: 10.1111/inm.12875. View

Vig K, Mason J, Carleton R, Asmundson G, Anderson G, Groll D . Mental health and social support among public safety personnel. Occup Med (Lond). 2020; 70(6):427-433. PMC: 7566747. DOI: 10.1093/occmed/kqaa129. View

Koenen K, Ratanatharathorn A, Ng L, McLaughlin K, Bromet E, Stein D . Posttraumatic stress disorder in the World Mental Health Surveys. Psychol Med. 2017; 47(13):2260-2274. PMC: 6034513. DOI: 10.1017/S0033291717000708. View

Lee J, Brook J, Finch S, Brook D . Trajectories of cannabis use beginning in adolescence associated with symptoms of posttraumatic stress disorder in the mid-thirties. Subst Abus. 2017; 39(1):39-45. PMC: 5797512. DOI: 10.1080/08897077.2017.1363121. View

Campbell R, Dworkin E, Cabral G . An ecological model of the impact of sexual assault on women's mental health. Trauma Violence Abuse. 2009; 10(3):225-46. DOI: 10.1177/1524838009334456. View

Czeisler M, Lane R, Petrosky E, Wiley J, Christensen A, Njai R . Mental Health, Substance Use, and Suicidal Ideation During the COVID-19 Pandemic - United States, June 24-30, 2020. MMWR Morb Mortal Wkly Rep. 2020; 69(32):1049-1057. PMC: 7440121. DOI: 10.15585/mmwr.mm6932a1. View

Capaldi C, Liu L, Ooi L, Roberts K . Self-rated mental health, community belonging, life satisfaction and perceived change in mental health among adults during the second and third waves of the COVID-19 pandemic in Canada. Health Promot Chronic Dis Prev Can. 2022; 42(5):218-225. PMC: 9306317. DOI: 10.24095/hpcdp.42.5.05. View

McGinty G, Fox R, Ben-Ezra M, Cloitre M, Karatzias T, Shevlin M . Sex and age differences in ICD-11 PTSD and complex PTSD: An analysis of four general population samples. Eur Psychiatry. 2021; 64(1):e66. PMC: 8581703. DOI: 10.1192/j.eurpsy.2021.2239. View

10.

Li Y, Scherer N, Felix L, Kuper H . Prevalence of depression, anxiety and post-traumatic stress disorder in health care workers during the COVID-19 pandemic: A systematic review and meta-analysis. PLoS One. 2021; 16(3):e0246454. PMC: 7946321. DOI: 10.1371/journal.pone.0246454. View

11.

Briere J, Kwon O, Semple R, Godbout N . Recent Suicidal Ideation and Behavior in the General Population: The Role of Depression, Posttraumatic Stress, and Reactive Avoidance. J Nerv Ment Dis. 2019; 207(5):320-325. DOI: 10.1097/NMD.0000000000000976. View

12.

Qassem T, Aly-ElGabry D, Alzarouni A, Abdel-Aziz K, Arnone D . Psychiatric Co-Morbidities in Post-Traumatic Stress Disorder: Detailed Findings from the Adult Psychiatric Morbidity Survey in the English Population. Psychiatr Q. 2020; 92(1):321-330. PMC: 7904722. DOI: 10.1007/s11126-020-09797-4. View

13.

Sahebi A, Yousefi A, Abdi K, Jamshidbeigi Y, Moayedi S, Torres M . The Prevalence of Post-traumatic Stress Disorder Among Health Care Workers During the COVID-19 Pandemic: An Umbrella Review and Meta-Analysis. Front Psychiatry. 2021; 12:764738. PMC: 8634396. DOI: 10.3389/fpsyt.2021.764738. View

14.

van der Velden P, Komproe I, Contino C, de Bruijne M, Kleber R, Das M . Which groups affected by Potentially Traumatic Events (PTEs) are most at risk for a lack of social support? A prospective population-based study on the 12-month prevalence of PTEs and risk factors for a lack of post-event social support. PLoS One. 2020; 15(5):e0232477. PMC: 7259781. DOI: 10.1371/journal.pone.0232477. View

15.

Spitzer R, Kroenke K, Williams J, Lowe B . A brief measure for assessing generalized anxiety disorder: the GAD-7. Arch Intern Med. 2006; 166(10):1092-7. DOI: 10.1001/archinte.166.10.1092. View

16.

Lei L, Zhu H, Li Y, Dai T, Zhao S, Zhang X . Prevalence of post-traumatic stress disorders and associated factors one month after the outbreak of the COVID-19 among the public in southwestern China: a cross-sectional study. BMC Psychiatry. 2021; 21(1):545. PMC: 8566661. DOI: 10.1186/s12888-021-03527-1. View

17.

Stelnicki A, Carleton R . Mental Disorder Symptoms Among Nurses in Canada. Can J Nurs Res. 2020; 53(3):264-276. DOI: 10.1177/0844562120961894. View

18.

Smith N, Cottler L . The Epidemiology of Post-Traumatic Stress Disorder and Alcohol Use Disorder. Alcohol Res. 2019; 39(2):113-120. PMC: 6561398. View

19.

Mawani F, Gilmour H . Validation of self-rated mental health. Health Rep. 2010; 21(3):61-75. View

20.

Browne K, Dolan M, Simpson T, Fortney J, Lehavot K . Regular past year cannabis use in women veterans and associations with sexual trauma. Addict Behav. 2018; 84:144-150. PMC: 6716375. DOI: 10.1016/j.addbeh.2018.04.007. View