The association between hot days and substance-related suicides: a time-stratified case-crossover analysis in British Columbia, Canada.

ABSTRACT:

Background

Hot weather can negatively impact mental health and increase the risk of suicide. The relationship between heat and risk of suicide is not fully understood, and varies geographically across regions with differing climates, cultures, and socio-economic factors. The objective of this study was to investigate the relationship between hot summer days and suicides in British Columbia, Canada (BC).

Methods

A time-stratified case-crossover design was used to estimate the relationship between hot days (exposure) and suicide (outcome), considering same-day and two-day mean temperature. Conditional logistic regression was used to estimate the odds ratio (OR) for the association between hot days and suicides for three outcomes including: (1) suicide attempts by self-poisonin

SUBMITTER: Li K 

PROVIDER: S-EPMC12042471 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature