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Canadian Centre on Substance Use and Addiction
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The COVID-19 pandemic has impacted the lives of all people living in Canada. The ongoing economic hardships, changes to our daily routines and separation from loved ones, among other stresses, have been linked to the worsening of mental health and an increase in substance use among many people living in Canada.

The Canadian Centre on Substance Use and Addiction (CCSA) and the Mental Health Commission of Canada (MHCC) have commissioned the Leger polling firm to produce a series of bimonthly surveys over a twelve-month period to explore the long-term impact of the COVID-19 pandemic on mental health and substance use. By tracking trends among the general population and priority populations, CCSA and MHCC aim to build on our understanding of the relationship between mental health and substance use during COVID-19 and better support people living in Canada through these challenging times.

Survey Results

Summary Report One, Baseline Survey (Time 1) and Survey 2 (Time 2)

Leger conducted a baseline survey of 2,502 people living in Canada between October 13 and November 2, 2020, and a second survey of 1,507 people between Nov 19 and Dec 2, 2020. Respondents reported more mental health symptoms and increased substance use since March 2020. People with a history of mental health or substance use concerns were disproportionately impacted by stresses related to the COVID-19 pandemic.

Up to one in two individuals with an existing substance use disorder reported having moderately severe to severe symptoms of depression since March 2020. Around one third of those surveyed who drink alcohol reported drinking more since the start of the pandemic. This increase was greater among respondents with a history of substance use disorders, four in 10 to almost half of whom reported increased consumption during this period.

Other key findings:

  • Up to one in two respondents with current mental health symptoms who use cannabis reported increased use since March 2020, compared to two in five of the general population.
  • Over one in three respondents with current mental health symptoms who use alcohol reported consuming more since the start of the pandemic.
  • Moderate and severe anxiety symptoms were highest among respondents with a history of substance use and mental health disorders. Respondents’ top stressors were their financial situation (14%), social isolation (12%), and the health of family members (11%).
  • Only 24% of respondents with problematic substance use and 22% with current mental health symptoms have accessed treatment since March.

Read the full report

Summary Report Two: Survey Three (T3) and Survey 4 (T4)

Leger conducted further surveys in early 2021; a third survey of 1502 people living in Canada between Jan 15 and 25, 2021, and a fourth survey of 1524 people living in Canada between March 1 to 14, 2021.

The second summary report in this series explores the substance use and mental health impacts of the pandemic by gender and household type, drawing on data from all four surveys. Childcare and financial situation were found to be the most commonly reported stresses for people living in households with young children, especially females.

Females living in households with children under the age of 13 were more likely to report symptoms of anxiety and increased substance use than the general population. Of those surveyed, 37% of females and 24% of males living with young children reported moderate to severe anxiety symptoms. Since November 2020, 37% of females and 26% of males living with young children and who use alcohol reported increased use.

Other key findings:

  • More females reported concerns with mental health and more males reported problematic use of substances.
  • People living alone were more likely to report moderate to severe depression symptoms (20% vs 15%), thoughts of suicide (9% vs 6%) and problematic alcohol use (31% vs 22%) compared to other survey participants.
  • Childcare stress is more common among females in households with children (14%) than males (4%); financial situation and social isolation continue to be major pandemic stressors.
  • Only 18% of people with current mental health symptoms and 20% with potential problematic substance use say they accessed treatment in February 2021.

Read the full report.

View the infographic

Summary Report Three: Survey Five (T5)

The third summary report in this series reveals that stress related to the COVID-19 pandemic is having a greater effect on people with low income and those who are unemployed. Access to mental health and substance use services remains out of reach for many.

The impact of the pandemic on both substance use and mental health is analyzed by income, employment status and access to mental health and substance use services. The extensive survey of more than 8,500 people living in Canada was conducted from October 2020 to May 2021. Key findings include:

  • Substance use and mental health concerns are greatest among people with low income or who are unemployed:
    • Problematic cannabis use was reported by 50% of respondents with low income or who are unemployed who use cannabis, while problematic alcohol use was reported by more than 30% of those who drink alcohol.
    • Similarly, 45% of respondents with low income or who are unemployed reported moderate to severe anxiety, and more than 30% reported moderately severe to severe depression.
  • Among people with low income or who are unemployed, 25% reported finances as the top pandemic stress.
  • More people are accessing virtual services, but rates of access remain low. Among those surveyed, 20% of those with mental health concerns reported accessing virtual services, compared with 10% of those with substance use concerns.
  • People with low income or who are unemployed face significantly more barriers to mental health and substance use treatment services. The most commonly cited barriers include financial constraints, help not being readily available, not knowing how and where to get help, and long waitlists.

Read the full report.

Summary Report Four: Survey Six (T6)

Since October 2020, six surveys conducted by Leger have tracked the relationship between mental health and substance use. The latest data from a survey of 1,543 people in Canada in July 2021 allows comparison throughout the pandemic, including by several key demographics.

This summary report compares mental health and substance use impacts on youth and older adults. It also assesses the prevalence of mental health and substance use stigma. Key findings include:

  • Youth (aged 16 to 24 years) were most likely to report mental health and substance use concerns, and less ability to handle pandemic stress. Almost 45% of youth reported moderate to severe anxiety symptoms, and about 40% of youth who use alcohol, cannabis or both reported increased use in the past month.
  • Older adults (aged 65 years and older), by comparison, showed signs of better mental health, less problematic substance use and stronger coping skills. Just 9% of older adults reported moderate to severe anxiety symptoms. About 20% of older adults who use alcohol, cannabis or both reported increased use.
  • Perceived stigma toward depression was still common, although shifting among youth. More than half or respondents (53%) said they believed stigma toward people with depression was still present.
  • Perceived stigma toward alcohol use disorder was even more prevalent. Two-thirds of respondents (68%) said they believed stigma toward people with an alcohol use disorder was still present.
  • People with past and current substance use concerns showed signs of worsening mental health. In July 2021, 22% of people with a history of substance use disorder reported seriously contemplating suicide in the past month. In November 2020, it was 13%.

Read the full report.

View the infographic

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