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

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...

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Autores principales: Fernando Florido Ngu, Ilan Kelman, Jonathan Chambers, Sonja Ayeb-Karlsson
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/22ee4a56aa814fa0958205d6129c518c
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spelling oai:doaj.org-article:22ee4a56aa814fa0958205d6129c518c2021-11-21T12:23:03ZCorrelating heatwaves and relative humidity with suicide (fatal intentional self-harm)10.1038/s41598-021-01448-32045-2322https://doaj.org/article/22ee4a56aa814fa0958205d6129c518c2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01448-3https://doaj.org/toc/2045-2322Abstract 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.Fernando Florido NguIlan KelmanJonathan ChambersSonja Ayeb-KarlssonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Fernando Florido Ngu
Ilan Kelman
Jonathan Chambers
Sonja Ayeb-Karlsson
Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)
description 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.
format article
author Fernando Florido Ngu
Ilan Kelman
Jonathan Chambers
Sonja Ayeb-Karlsson
author_facet Fernando Florido Ngu
Ilan Kelman
Jonathan Chambers
Sonja Ayeb-Karlsson
author_sort Fernando Florido Ngu
title Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)
title_short Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)
title_full Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)
title_fullStr Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)
title_full_unstemmed Correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)
title_sort correlating heatwaves and relative humidity with suicide (fatal intentional self-harm)
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/22ee4a56aa814fa0958205d6129c518c
work_keys_str_mv AT fernandofloridongu correlatingheatwavesandrelativehumiditywithsuicidefatalintentionalselfharm
AT ilankelman correlatingheatwavesandrelativehumiditywithsuicidefatalintentionalselfharm
AT jonathanchambers correlatingheatwavesandrelativehumiditywithsuicidefatalintentionalselfharm
AT sonjaayebkarlsson correlatingheatwavesandrelativehumiditywithsuicidefatalintentionalselfharm
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