1. British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada
2. School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
3. Department of Crisis Intervention and Suicide Prevention, Paracelsus Medical University, Salzburg, Austria
4. Department of Clinical Psychology, University Clinic of Psychiatry, Psychotherapy, and Psychosomatics, Paracelsus Medical University, Salzburg, Austria
5. Department of Mathematics and Statistics, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
6. Department of Statistics, University of British Columbia, Vancouver, British Columbia, Canada