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Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave
Older adults are highly vulnerable to the detriment of extreme weather. The rapid non-linear increase in heat-related morbidity is difficult to quantify, hindering the attribution of direct effects of exposure on severe health outcomes. We examine the effects of ambient temperatures on heat-related...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5225426/ https://www.ncbi.nlm.nih.gov/pubmed/28074921 http://dx.doi.org/10.1038/srep39581 |
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author | Liss, Alexander Wu, Ruiruo Chui, Kenneth Kwan Ho Naumova, Elena N. |
author_facet | Liss, Alexander Wu, Ruiruo Chui, Kenneth Kwan Ho Naumova, Elena N. |
author_sort | Liss, Alexander |
collection | PubMed |
description | Older adults are highly vulnerable to the detriment of extreme weather. The rapid non-linear increase in heat-related morbidity is difficult to quantify, hindering the attribution of direct effects of exposure on severe health outcomes. We examine the effects of ambient temperatures on heat-related hospitalizations (HH) among the elderly in presence of strong seasonality and by assessing the effects caused by the first and subsequent seasonal heatwaves. We empirically derived the thresholds for a heatwave episode in Boston MSA based on 16 years of daily observations. We compared the health risks of heatwaves using the proposed and four alternative definitions. 701 cases of HH in older residents of Boston area were examined using harmonic regression models, designed to capture the non-linear effects of ambient temperatures and heatwave episodes when the night-time temperature is above 65.5 °F for 3 consecutive nights. The overall relative risk of HH associated with a heatwave episode was 6.9 [95%CI:4.8–9.8]. The relative risk of HH associated with the first heatwave increases up to 13.3 [95%CI:7.4–24.0]. The risk declined to 3.7 [95%CI:2.4–5.8] for the subsequent heatwave. Four other commonly used heatwave definitions confirmed these findings. Public health actions have to target the first heatwave to maximize the impact of preventive measures. |
format | Online Article Text |
id | pubmed-5225426 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-52254262017-01-17 Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave Liss, Alexander Wu, Ruiruo Chui, Kenneth Kwan Ho Naumova, Elena N. Sci Rep Article Older adults are highly vulnerable to the detriment of extreme weather. The rapid non-linear increase in heat-related morbidity is difficult to quantify, hindering the attribution of direct effects of exposure on severe health outcomes. We examine the effects of ambient temperatures on heat-related hospitalizations (HH) among the elderly in presence of strong seasonality and by assessing the effects caused by the first and subsequent seasonal heatwaves. We empirically derived the thresholds for a heatwave episode in Boston MSA based on 16 years of daily observations. We compared the health risks of heatwaves using the proposed and four alternative definitions. 701 cases of HH in older residents of Boston area were examined using harmonic regression models, designed to capture the non-linear effects of ambient temperatures and heatwave episodes when the night-time temperature is above 65.5 °F for 3 consecutive nights. The overall relative risk of HH associated with a heatwave episode was 6.9 [95%CI:4.8–9.8]. The relative risk of HH associated with the first heatwave increases up to 13.3 [95%CI:7.4–24.0]. The risk declined to 3.7 [95%CI:2.4–5.8] for the subsequent heatwave. Four other commonly used heatwave definitions confirmed these findings. Public health actions have to target the first heatwave to maximize the impact of preventive measures. Nature Publishing Group 2017-01-11 /pmc/articles/PMC5225426/ /pubmed/28074921 http://dx.doi.org/10.1038/srep39581 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Liss, Alexander Wu, Ruiruo Chui, Kenneth Kwan Ho Naumova, Elena N. Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave |
title | Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave |
title_full | Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave |
title_fullStr | Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave |
title_full_unstemmed | Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave |
title_short | Heat-Related Hospitalizations in Older Adults: An Amplified Effect of the First Seasonal Heatwave |
title_sort | heat-related hospitalizations in older adults: an amplified effect of the first seasonal heatwave |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5225426/ https://www.ncbi.nlm.nih.gov/pubmed/28074921 http://dx.doi.org/10.1038/srep39581 |
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