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Heat and cold related-mortality in 18 French cities.

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Title: Heat and cold related-mortality in 18 French cities.
Authors: Pascal, Mathilde1 mathilde.pascal@santepubliquefrance.fr, Wagner, Vérène1, Corso, Magali1, Laaidi, Karine1, Ung, Aymeric1, Beaudeau, Pascal1
Source: Environment International. Dec2018 Part 1, Vol. 121, p189-198. 10p.
Subjects: Poisson distribution, Mortality, Climate change, Public health, Human services
Abstract: Abstract Objectives Understanding the dynamics of the temperature-mortality relationship is an asset to support public health interventions. We investigated the lag structure of the mortality response to cold and warm temperatures in 18 French cities between 2000 and 2010. Methods A distributed lag non-linear generalized model using a quasi-Poisson distribution and controlling for classical confounding factors was built in each city. A fitted meta-analytical model combined the city-specific models to derive the best linear unbiased prediction of the association, and a meta-regression explored the influence of background characteristics of the cities. The fraction of mortality attributable to cold and heat was estimated with reference to the minimum mortality temperature. Results Between 2000 and 2010, 3.9% [CI 95% 3.2:4.6] of the total mortality was attributed to cold, and 1.2% [1.1:1.2] to heat. The immediate increase in mortality following high temperatures was partly compensated by a harvesting effect when temperatures were below the 99.2 percentiles of the mean temperature distributions. Discussion Cold represents a significant public health burden, mostly driven by moderate temperatures (between percentiles 2.5 and 25). The population is better adapted to warm temperatures, up to a certain intensity when heat becomes an acute environmental health emergency (above percentile 99). The rapid increase in mortality risk at very high temperatures percentiles calls for an active adaptation in a context of climate change. Highlights • Cold has a significant public health burden driven by moderate temperatures. • Population is well adapted to heat, up to a threshold when it is an acute risk. • A harvesting effect partly compensates the immediate heat-related mortality. • For extreme heat, the harvesting effect disappears and the impact is sustained. • Response to heat questions the capacity to protect public health in the future. [ABSTRACT FROM AUTHOR]
Copyright of Environment International is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Data: Heat and cold related-mortality in 18 French cities.
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  Data: <searchLink fieldCode="JN" term="%22Environment+International%22">Environment International</searchLink>. Dec2018 Part 1, Vol. 121, p189-198. 10p.
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  Data: Abstract Objectives Understanding the dynamics of the temperature-mortality relationship is an asset to support public health interventions. We investigated the lag structure of the mortality response to cold and warm temperatures in 18 French cities between 2000 and 2010. Methods A distributed lag non-linear generalized model using a quasi-Poisson distribution and controlling for classical confounding factors was built in each city. A fitted meta-analytical model combined the city-specific models to derive the best linear unbiased prediction of the association, and a meta-regression explored the influence of background characteristics of the cities. The fraction of mortality attributable to cold and heat was estimated with reference to the minimum mortality temperature. Results Between 2000 and 2010, 3.9% [CI 95% 3.2:4.6] of the total mortality was attributed to cold, and 1.2% [1.1:1.2] to heat. The immediate increase in mortality following high temperatures was partly compensated by a harvesting effect when temperatures were below the 99.2 percentiles of the mean temperature distributions. Discussion Cold represents a significant public health burden, mostly driven by moderate temperatures (between percentiles 2.5 and 25). The population is better adapted to warm temperatures, up to a certain intensity when heat becomes an acute environmental health emergency (above percentile 99). The rapid increase in mortality risk at very high temperatures percentiles calls for an active adaptation in a context of climate change. Highlights • Cold has a significant public health burden driven by moderate temperatures. • Population is well adapted to heat, up to a threshold when it is an acute risk. • A harvesting effect partly compensates the immediate heat-related mortality. • For extreme heat, the harvesting effect disappears and the impact is sustained. • Response to heat questions the capacity to protect public health in the future. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Environment International is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Dec2018 Part 1
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