Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)

Florido Ngu, Fernando, Kelman, Ilan, Chambers, Jonathan and Ayeb-Karlsson, Sonja (2021) Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm). Scientific Reports, 11 (1). a22175 1-9. ISSN 2045-2322

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Abstract

Empirical evidence suggests that the effects of anthropogenic climate change, and heat in particular, could have a significant impact on mental health. This article investigates the correlation between heatwaves and/or relative humidity and suicide (fatal intentional self-harm) on a global scale. The covariance between heat/humidity and suicide was modelled using a negative binomial Poisson regression with data from 60 countries between 1979–2016. Statistically significant increases and decreases in suicide were found, as well as many cases with no significant correlation. We found that relative humidity showed a more significant correlation with suicide compared to heatwaves and that both younger age groups and women seemed to be more significantly affected by changes in humidity and heatwave counts in comparison with the rest of the population. Further research is needed to provide a larger and more consistent basis for epidemiological studies; to understand better the connections among heat, humidity and mental health; and to explore in more detail which population groups are particularly impacted and why.

Item Type: Article
Schools and Departments: Brighton and Sussex Medical School > Global Health and Infection
SWORD Depositor: Mx Elements Account
Depositing User: Mx Elements Account
Date Deposited: 18 Nov 2021 12:42
Last Modified: 09 Feb 2022 09:15
URI: http://sro.sussex.ac.uk/id/eprint/103000

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