Evaluating the cost effectiveness of a suicide prevention campaign implemented in Ontario, Canada

Background Although suicide-prevention campaigns have been implemented in numerous countries, Canada has yet to implement a strategy nationally. This is the first study to examine the cost utility of the implementation of a multidimensional suicide-prevention program that combines several interventions over a 50-year time horizon. Methods We used Markov modeling to capture the dynamic changes […]

A report on suicide deaths in Ontario

Coroners in Ontario – along with the Ontario Forensics Pathology Service – are tasked with ensuring that no death will be overlooked, concealed, or ignored. While not all deaths require investigation, coroners are charged with investigating all non-natural deaths as well as natural deaths that occur in certain circumstances, including: deaths that occur suddenly and […]

Self-harm among youth during the first 28 months of the COVID-19 pandemic in Ontario, Canada: A population-based study

Background: Youth have reported worsening mental health during the COVID-19 pandemic. We sought to evaluate rates of pediatric acute care visits for self-harm during the pandemic according to age, sex and mental health service use. Methods: We conducted a population-based, repeated cross-sectional study using linked health administrative data sets to measure monthly rates of emergency department visits […]

An interrupted time series evaluation of the effect of cannabis legalization on intentional self-harm in two Canadian provinces: Ontario and Alberta

Introduction: Despite the association between cannabis use and higher prevalence of suicidal ideation and attempt, the effect of cannabis legalization and regulation in Canada on intentional self-harm has not been determined. Methods: We used an interrupted time series of population-based rates of emergency department (ED) visits and hospitalizations for intentional self-harm per 100 000 in Ontario and […]

Self-harm events and suicide deaths among autistic individuals in Ontario, Canada

Importance: Reasons for elevated suicide risks among autistic people are unclear, with insufficient population-based research on sex-specific patterns to inform tailored prevention and intervention. Objectives: To examine sex-stratified rates of self-harm events and suicide death among autistic individuals compared with nonautistic individuals, as well as the associated sociodemographic and clinical risk factors. Design, Setting, and […]

The contribution across three generations of mercury exposure to attempted suicide among children and youth in Grassy Narrows First Nation, Canada: An intergenerational analysis

Background: For 60 y, the people of Asubpeeschoseewagong Anishinabek (Grassy Narrows First Nation) have endured the effects of massive mercury (Hg) contamination of their river system, central to their traditions, culture, livelihood, and diet. In the years following the Hg discharge into the English–Wabigoon River system by a chloralkali plant in the early 1970s, there […]

The ever-changing narrative: Supervised injection site policy making in Ontario, Canada

Background: We analyze the ongoing debate surrounding supervised injection sites in Ontario, Canada and changing policies that impact host communities. Despite a plethora of evidence proving the effectiveness of supervised injection sites on harm reduction strategy, the topic remains highly controversial with constantly changing rhetoric in the Ontario drug policy landscape. Methods: We reviewed government reports, policies, […]

Suicide and self-harm among immigrant youth to Ontario, Canada from Muslim majority countries: A population-based study

Objective: To examine the association between Muslim religious affiliation and suicide and self-harm presentations among first- and second-generation immigrant youth. Methods: We performed a population-based cohort study involving individuals aged 12 to 24 years, living in Ontario, who immigrated to Canada between 1 January 2003 and 31 May 2017 (first generation) and those born to immigrant mothers […]

Association between cannabis use disorder and self- and other-directed aggression

Cannabis is the most widely used drug worldwide. Data about the association of cannabis use with aggression is heterogeneous. The objective of the current study was to assess the nature of the association between cannabis use disorder (CUD) and self-directed, other-directed, and combined aggression. We used data from the National Survey on Drug Use and […]

Suicide and self-harm among physicians in Ontario, Canada

Background Studies of occupation-associated suicide suggest physicians may be at a higher risk of suicide compared to nonphysicians. We set out to assess the risk of suicide and self-harm among physicians and compare it to nonphysicians. Methods We conducted a population-based, retrospective cohort study using registration data from the College of Physicians and Surgeons of […]

Examination of the geographic parameters of suicide: A historical comparison study of Ontario and Alberta

Within Canada, suicide rates vary by province which may be attributed to several factors which have been studied. A longitudinal study examining social factors such as birth, divorce and marriage rates from 1950 to1990 found a positive correlation between divorce rates and suicide rates and “a negative association between birth rates and suicide rates”. Other […]

Trends and factors associated with suicide deaths in older adults in Ontario, Canada

Background: Suicide in older adults is a significant overlooked problem worldwide. This is especially true in Canada where a national suicide prevention strategy has not been established. Methods: Using linked health-care administrative databases, this population-level study (2011 to 2015) described the incidence of older adult suicide (aged 65+), and identified clinical and socio-demographic factors associated […]

Suicides in young people in Ontario following the release of “13 Reasons Why”

Objective: “13 Reasons Why,” a Netflix series, included a controversial depiction of suicide that has raised fears about possible contagion. Studies of youth suicide in the United States found an increase on the order of 10% following release of the show, but this has not been replicated in other countries. This study aims to begin to […]

Prevalence and correlates of youth suicidal ideation and attempts: Evidence from the 2014 Ontario Child Health Study

Objectives: To present the 12-month prevalence and correlates of suicidal ideation and attempts in a sample of youth in Ontario. Methods: Data come from the 2014 Ontario Child Health Study, a provincially representative survey of families with children in Ontario. Youth aged 14 to 17 y (n = 2,396) completed a computer-assisted, self-administered questionnaire in their […]

Examining the association between suicidal behaviors and referral for mental health services among children involved in the child welfare system in Ontario, Canada

Although various studies have investigated factors associated with mental health service utilization, few studies have examined factors associated with referral for mental health services among maltreated children. The objective of this study was to examine the association between suicidal thoughts and self-harming behavior and referral for mental health services among children involved in the Child […]

Suicide-related Twitter content in response to a national mental health awareness campaign and the association between the campaign and suicide rates in Ontario

Objective: Mental health awareness (MHA) campaigns have been shown to be successful in improving mental health literacy, decreasing stigma, and generating public discussion. However, there is a dearth of evidence regarding the effects of these campaigns on behavioral outcomes such as suicides. Therefore, the objective of this article is to characterize the association between the event […]

Firearm-related injuries and deaths in Ontario, Canada, 2002-2016: A population-based study

BACKGROUND: Firearm-related injury is an important and preventable cause of death and disability. We describe the burden, baseline characteristics and regional rates of firearm-related injury and death in Ontario. METHODS: We conducted a population-based cross-sectional study using linked data from health administrative data sets held at ICES. We identified residents of Ontario of all ages who were […]

Evaluation of Talk Today, a program of the Canadian Mental Health Association, Ontario Division: Part A Report

McGill’s Faculty of Education began a collaboration with the Canadian Mental Health Association, Ontario Division in 2018 to evaluate their Talk Today program. The present report details the Talk Today program designed by CMHA Ontario and is a comprehensive mental health program aimed at promoting and spreading awareness of mental health for young athletes. Additionally, […]

Trends of intentional drug overdose among youth: A population-based cohort study

Background: Intentional overdose is the commonest form of self-harm in adolescents globally. We explored temporal trends in intentional overdose among youth. Methods: Using multiple linked healthcare databases, we conducted a population-based cohort study in Ontario, Canada, from 2002 to 2015. We included all patients aged 8 to 19 years who presented to an emergency department (ED) or were […]

Changing rates of self-harm and mental disorders by sex in youths presenting to Ontario emergency departments: Repeated cross-sectional study

Objective: To document the rates of intentional self-harm and mental disorders among youths aged 13 to 17 years visiting Ontario emergency departments (EDs) from 2003-2017. Methods: This was a repeated cross-sectional observational design. Outcomes were rates of adolescents with (1) at least 1 self-harm ED visit and (2) a visit with a mental disorder code. […]

Strengthening suicide prevention in Ontario hospitals: A report from the OHA Task Force on Suicide Prevention

In 2015, the Ministry of Health and Long-Term Care asked the Ontario Hospital Association (OHA) to create a Task Force to recommend safe medical practices for patients atrisk of suicide. The OHA Task Force on Suicide Prevention (Task Force) met regularly throughout the 2015-16 year, examined current hospital policies and protocols for suicide prevention and assessment, […]

Perinatal suicide in Ontario, Canada: A 15-year population-based study.

BACKGROUND: Death by suicide during the perinatal period has been understudied in Canada. We examined the epidemiology of and health service use related to suicides during pregnancy and the first postpartum year. METHODS: In this retrospective, population-based cohort study, we linked health administrative databases with coroner death records (1994–2008) for Ontario, Canada. We compared sociodemographic characteristics, clinical […]

Is tetraethyl lead poison affecting contemporary indigenous suicides in Ontario, Canada?

Highlights •Lead (Pb) poison levels where high among the Indigenous population of Northwestern Ontario prior to the outbreak of a suicide epidemic in the area. •Pb contributes to an overexpression of the amyloid-β protein precursor (AβPP) and amyloid-β (Aβ) which contribute to enhanced pathologic neurodegeneration. •Pb causes a down-regulation (4-fold) of the 5-hydroxytryptamine 1B receptor […]