The Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study

Background: Heat waves are correlated with increased mortality in the aged population. Social isolation is known as a vulnerability factor. This study aims at evaluating the correlation between an intervention to reduce social isolation and the increase in mortality in the population over 80 during...

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Autores principales: Stefano Orlando, Claudia Mosconi, Carolina De Santo, Leonardo Emberti Gialloreti, Maria Chiara Inzerilli, Olga Madaro, Sandro Mancinelli, Fausto Ciccacci, Maria Cristina Marazzi, Leonardo Palombi, Giuseppe Liotta
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spelling oai:doaj.org-article:a767b15a9ae7418b879a518676ab32342021-11-11T16:41:45ZThe Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study10.3390/ijerph1821115871660-46011661-7827https://doaj.org/article/a767b15a9ae7418b879a518676ab32342021-11-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/21/11587https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601Background: Heat waves are correlated with increased mortality in the aged population. Social isolation is known as a vulnerability factor. This study aims at evaluating the correlation between an intervention to reduce social isolation and the increase in mortality in the population over 80 during heat waves. Methods: This study adopted a retrospective ecologic design. We compared the excess mortality rate (EMR) in the over-80 population during heat waves in urban areas of Rome (Italy) where a program to reduce social isolation was implemented, to others where it was not implemented. We measured the mortality of the summer periods from 2015 to 2019 compared with 2014 (a year without heat waves). Winter mortality, cadastral income, and the proportion of people over 90 were included in the multivariate Poisson regression. Results: The EMR in the intervention and controls was 2.70% and 3.81%, respectively. The rate ratio was 0.70 (c.i. 0.54–0.92, <i>p</i>-value 0.01). The incidence rate ratio (IRR) of the interventions, with respect to the controls, was 0.76 (c.i. 0.59–0.98). After adjusting for other variables, the IRR was 0.44 (c.i. 0.32–0.60). Conclusions: Reducing social isolation could limit the impact of heat waves on the mortality of the elderly population.Stefano OrlandoClaudia MosconiCarolina De SantoLeonardo Emberti GialloretiMaria Chiara InzerilliOlga MadaroSandro MancinelliFausto CiccacciMaria Cristina MarazziLeonardo PalombiGiuseppe LiottaMDPI AGarticleextreme weatherheat wavesenvironment and public healthagedolder adultssocial behaviorMedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 11587, p 11587 (2021)
institution DOAJ
collection DOAJ
language EN
topic extreme weather
heat waves
environment and public health
aged
older adults
social behavior
Medicine
R
spellingShingle extreme weather
heat waves
environment and public health
aged
older adults
social behavior
Medicine
R
Stefano Orlando
Claudia Mosconi
Carolina De Santo
Leonardo Emberti Gialloreti
Maria Chiara Inzerilli
Olga Madaro
Sandro Mancinelli
Fausto Ciccacci
Maria Cristina Marazzi
Leonardo Palombi
Giuseppe Liotta
The Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study
description Background: Heat waves are correlated with increased mortality in the aged population. Social isolation is known as a vulnerability factor. This study aims at evaluating the correlation between an intervention to reduce social isolation and the increase in mortality in the population over 80 during heat waves. Methods: This study adopted a retrospective ecologic design. We compared the excess mortality rate (EMR) in the over-80 population during heat waves in urban areas of Rome (Italy) where a program to reduce social isolation was implemented, to others where it was not implemented. We measured the mortality of the summer periods from 2015 to 2019 compared with 2014 (a year without heat waves). Winter mortality, cadastral income, and the proportion of people over 90 were included in the multivariate Poisson regression. Results: The EMR in the intervention and controls was 2.70% and 3.81%, respectively. The rate ratio was 0.70 (c.i. 0.54–0.92, <i>p</i>-value 0.01). The incidence rate ratio (IRR) of the interventions, with respect to the controls, was 0.76 (c.i. 0.59–0.98). After adjusting for other variables, the IRR was 0.44 (c.i. 0.32–0.60). Conclusions: Reducing social isolation could limit the impact of heat waves on the mortality of the elderly population.
format article
author Stefano Orlando
Claudia Mosconi
Carolina De Santo
Leonardo Emberti Gialloreti
Maria Chiara Inzerilli
Olga Madaro
Sandro Mancinelli
Fausto Ciccacci
Maria Cristina Marazzi
Leonardo Palombi
Giuseppe Liotta
author_facet Stefano Orlando
Claudia Mosconi
Carolina De Santo
Leonardo Emberti Gialloreti
Maria Chiara Inzerilli
Olga Madaro
Sandro Mancinelli
Fausto Ciccacci
Maria Cristina Marazzi
Leonardo Palombi
Giuseppe Liotta
author_sort Stefano Orlando
title The Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study
title_short The Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study
title_full The Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study
title_fullStr The Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study
title_full_unstemmed The Effectiveness of Intervening on Social Isolation to Reduce Mortality during Heat Waves in Aged Population: A Retrospective Ecological Study
title_sort effectiveness of intervening on social isolation to reduce mortality during heat waves in aged population: a retrospective ecological study
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/a767b15a9ae7418b879a518676ab3234
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