期刊
AMERICAN JOURNAL OF EPIDEMIOLOGY
卷 191, 期 12, 页码 2037-2050出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/aje/kwac150
关键词
adaptation; climate change; mortality; suicide; temperature; time series
资金
- European Commission [825417]
- H2020 Societal Challenges Programme [825417] Funding Source: H2020 Societal Challenges Programme
This study examines the short-term association between temperature and cause-specific mortality, focusing on suicide deaths. The findings reveal a monotonic association between temperature and suicide mortality, with suicide ranking seventh among heat-related deaths. The association has attenuated over time, but without clear further attenuation in recent years.
Suicide is one of the leading causes of death in young adults in many Western countries. We examined the short-term association of temperature with cause-specific mortality, comparing suicide with other causes of death and describing possible attenuation of associations with temperature across decades. We considered all deaths that occurred in France between 1968 and 2016. For each cause of death, we conducted a 2-stage meta-analysis of associations with daily temperature. We stratified the association across time periods. A total of 502,017 deaths by suicide were recorded over 49 years. Temperature was monotonically associated with suicide mortality. The strongest association was found at lag 0 days. The relative risk of suicide mortality at the 99th (compared with the 1st) temperature percentile was 1.54 (95% confidence interval, 1.46, 1.63). Among all causes of death, suicide was the only cause displaying a monotonic trend with temperature and ranked seventh for heat-related mortality; 2 other causes of death implying the nervous system ranked third and fourth. Associations with temperature attenuated between the 1968-1984 and 1985-2000 periods for all-cause mortality and suicide mortality, without clear further attenuation in the 2001-2016 period. The robust short-term monotonic association between temperature and suicide risk could be considered in heat effects- and suicide-related prevention campaigns.
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