This 2007 report, funded by the Canadian Institutes of Health Research, examines the association between pathological gambling and attempted suicide in a nationally representative sample of Canadians.
This information sheet, from the Centre for Suicide Prevention, is about gambling and suicidal behaviours
This 2009 CBC article reports on a rise in gambling-related suicides in Ontario and the fact that not all provinces and territories in Canada track gambling-related deaths.
This University of Calgary study assessed a community sample of individuals with gambling problems who had made a recent quit attempt to gain insight into suicide ideation and attempts among pathological gamblers trying to quit. The work helped to identifiy predictors of suicidal ideation and attempts, with a particular emphasis on mood and substance use disorders.
This information about gambling and suicide/self-harm in Canada is from Canada's Safety Council: Canada's voice and resource for safety.