Seasonal variations in suicide mortality in Canada: A nationwide analysis

This study confirms seasonal patterns in suicide mortality in Canada, peaking during the summer months. Such patterns are more prominent and stable among males, and its amplitude was larger among older adults. Contrary to the common perception that suicide rates peak in January, our findings show a summer peak. Future research should explore the underlying mechanisms driving these seasonal variations and their demographic differences.

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Publication Details

Journal
Canadian Journal of Public Health
Published
2026-02-04
DOI
https://doi.org/10.17269/s41997-026-01155-4
Primary Topic
Suicide and Self-Harm Studies
Type
article
Field-Weighted Citation Impact
0.00
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article

Seasonal variations in suicide mortality in Canada: A nationwide analysis

Gisèle Contreras, Geneviève Gariépy, Emily S. Lau, Rebecca Plouffe et al.
Canadian Journal of Public Health
Suicide and Self-Harm Studies
article

Seasonal variations in suicide mortality in Canada: A nationwide analysis

Gisèle Contreras, Geneviève Gariépy, Emily S. Lau, Rebecca Plouffe, Karin Johnson, Li Liu
article en

Abstract

This study confirms seasonal patterns in suicide mortality in Canada, peaking during the summer months. Such patterns are more prominent and stable among males, and its amplitude was larger among older adults. Contrary to the common perception that suicide rates peak in January, our findings show a summer peak. Future research should explore the underlying mechanisms driving these seasonal variations and their demographic differences.

Canadian Journal of Public Health
Public Health Agency of Canada (CA), University of Toronto (CA), Public Health Ontario (CA)
Good health and well-being
Openalex Percentile: Top 69%
Suicide and Self-Harm Studies
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Seasonal variations in suicide mortality in Canada: A nationwide analysis — Gisèle Contreras, Geneviève Gariépy, et al. · Canadian Journal of Public Health (2026) | TGRS Research Map | TGRS