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Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design

Numerous studies have demonstrated the relationship between summer temperatures and increased heat-related deaths. Epidemiological analyses of the health effects of climate exposures usually rely on observations from the nearest weather station to assess exposure-response associations for geographic...

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Autores principales: Ingole, Vijendra, Marí-Dell’Olmo, Marc, Deluca, Anna, Quijal, Marcos, Borrell, Carme, Rodríguez-Sanz, Maica, Achebak, Hicham, Lauwaet, Dirk, Gilabert, Joan, Murage, Peninah, Hajat, Shakoor, Basagaña, Xavier, Ballester, Joan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7177772/
https://www.ncbi.nlm.nih.gov/pubmed/32276439
http://dx.doi.org/10.3390/ijerph17072553
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author Ingole, Vijendra
Marí-Dell’Olmo, Marc
Deluca, Anna
Quijal, Marcos
Borrell, Carme
Rodríguez-Sanz, Maica
Achebak, Hicham
Lauwaet, Dirk
Gilabert, Joan
Murage, Peninah
Hajat, Shakoor
Basagaña, Xavier
Ballester, Joan
author_facet Ingole, Vijendra
Marí-Dell’Olmo, Marc
Deluca, Anna
Quijal, Marcos
Borrell, Carme
Rodríguez-Sanz, Maica
Achebak, Hicham
Lauwaet, Dirk
Gilabert, Joan
Murage, Peninah
Hajat, Shakoor
Basagaña, Xavier
Ballester, Joan
author_sort Ingole, Vijendra
collection PubMed
description Numerous studies have demonstrated the relationship between summer temperatures and increased heat-related deaths. Epidemiological analyses of the health effects of climate exposures usually rely on observations from the nearest weather station to assess exposure-response associations for geographically diverse populations. Urban climate models provide high-resolution spatial data that may potentially improve exposure estimates, but to date, they have not been extensively applied in epidemiological research. We investigated temperature-mortality relationships in the city of Barcelona, and whether estimates vary among districts. We considered georeferenced individual (natural) mortality data during the summer months (June–September) for the period 1992–2015. We extracted daily summer mean temperatures from a 100-m resolution simulation of the urban climate model (UrbClim). Summer hot days (above percentile 70) and reference (below percentile 30) temperatures were compared by using a conditional logistic regression model in a case crossover study design applied to all districts of Barcelona. Relative Risks (RR), and 95% Confidence Intervals (CI), of all-cause (natural) mortality and summer temperature were calculated for several population subgroups (age, sex and education level by districts). Hot days were associated with an increased risk of death (RR = 1.13; 95% CI = 1.10–1.16) and were significant in all population subgroups compared to the non-hot days. The risk ratio was higher among women (RR = 1.16; 95% CI= 1.12–1.21) and the elderly (RR = 1.18; 95% CI = 1.13–1.22). Individuals with primary education had similar risk (RR = 1.13; 95% CI = 1.08–1.18) than those without education (RR = 1.10; 95% CI= 1.05–1.15). Moreover, 6 out of 10 districts showed statistically significant associations, varying the risk ratio between 1.12 (95% CI = 1.03–1.21) in Sants-Montjuïc and 1.25 (95% CI = 1.14–1.38) in Sant Andreu. Findings identified vulnerable districts and suggested new insights to public health policy makers on how to develop district-specific strategies to reduce risks.
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spelling pubmed-71777722020-04-28 Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design Ingole, Vijendra Marí-Dell’Olmo, Marc Deluca, Anna Quijal, Marcos Borrell, Carme Rodríguez-Sanz, Maica Achebak, Hicham Lauwaet, Dirk Gilabert, Joan Murage, Peninah Hajat, Shakoor Basagaña, Xavier Ballester, Joan Int J Environ Res Public Health Article Numerous studies have demonstrated the relationship between summer temperatures and increased heat-related deaths. Epidemiological analyses of the health effects of climate exposures usually rely on observations from the nearest weather station to assess exposure-response associations for geographically diverse populations. Urban climate models provide high-resolution spatial data that may potentially improve exposure estimates, but to date, they have not been extensively applied in epidemiological research. We investigated temperature-mortality relationships in the city of Barcelona, and whether estimates vary among districts. We considered georeferenced individual (natural) mortality data during the summer months (June–September) for the period 1992–2015. We extracted daily summer mean temperatures from a 100-m resolution simulation of the urban climate model (UrbClim). Summer hot days (above percentile 70) and reference (below percentile 30) temperatures were compared by using a conditional logistic regression model in a case crossover study design applied to all districts of Barcelona. Relative Risks (RR), and 95% Confidence Intervals (CI), of all-cause (natural) mortality and summer temperature were calculated for several population subgroups (age, sex and education level by districts). Hot days were associated with an increased risk of death (RR = 1.13; 95% CI = 1.10–1.16) and were significant in all population subgroups compared to the non-hot days. The risk ratio was higher among women (RR = 1.16; 95% CI= 1.12–1.21) and the elderly (RR = 1.18; 95% CI = 1.13–1.22). Individuals with primary education had similar risk (RR = 1.13; 95% CI = 1.08–1.18) than those without education (RR = 1.10; 95% CI= 1.05–1.15). Moreover, 6 out of 10 districts showed statistically significant associations, varying the risk ratio between 1.12 (95% CI = 1.03–1.21) in Sants-Montjuïc and 1.25 (95% CI = 1.14–1.38) in Sant Andreu. Findings identified vulnerable districts and suggested new insights to public health policy makers on how to develop district-specific strategies to reduce risks. MDPI 2020-04-08 2020-04 /pmc/articles/PMC7177772/ /pubmed/32276439 http://dx.doi.org/10.3390/ijerph17072553 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ingole, Vijendra
Marí-Dell’Olmo, Marc
Deluca, Anna
Quijal, Marcos
Borrell, Carme
Rodríguez-Sanz, Maica
Achebak, Hicham
Lauwaet, Dirk
Gilabert, Joan
Murage, Peninah
Hajat, Shakoor
Basagaña, Xavier
Ballester, Joan
Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design
title Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design
title_full Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design
title_fullStr Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design
title_full_unstemmed Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design
title_short Spatial Variability of Heat-Related Mortality in Barcelona from 1992–2015: A Case Crossover Study Design
title_sort spatial variability of heat-related mortality in barcelona from 1992–2015: a case crossover study design
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7177772/
https://www.ncbi.nlm.nih.gov/pubmed/32276439
http://dx.doi.org/10.3390/ijerph17072553
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