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Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden

BACKGROUND: Ambient temperatures can cause an increase in mortality. A better understanding is needed of how health status and other factors modify the risk associated with high and low temperatures, to improve the basis of preventive measures. Differences in susceptibility to temperature and to hea...

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Autores principales: Rocklöv, Joacim, Forsberg, Bertil, Ebi, Kristie, Bellander, Tom
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Co-Action Publishing 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3955771/
https://www.ncbi.nlm.nih.gov/pubmed/24647126
http://dx.doi.org/10.3402/gha.v7.22737
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author Rocklöv, Joacim
Forsberg, Bertil
Ebi, Kristie
Bellander, Tom
author_facet Rocklöv, Joacim
Forsberg, Bertil
Ebi, Kristie
Bellander, Tom
author_sort Rocklöv, Joacim
collection PubMed
description BACKGROUND: Ambient temperatures can cause an increase in mortality. A better understanding is needed of how health status and other factors modify the risk associated with high and low temperatures, to improve the basis of preventive measures. Differences in susceptibility to temperature and to heat and cold wave duration are relatively unexplored. OBJECTIVES: We studied the associations between mortality and temperature and heat and cold wave duration, stratified by age and individual and medical factors. METHODS: Deaths among all residents of Stockholm County between 1990 and 2002 were linked to discharge diagnosis data from hospital admissions, and associations were examined using the time stratified case-crossover design. Analyses were stratified by gender, age, pre-existing disease, country of origin, and municipality level wealth, and adjusted for potential confounding factors. RESULTS: The effect on mortality by heat wave duration was higher for lower ages, in areas with lower wealth, for hospitalized patients younger than age 65. Odds were elevated among females younger than age 65, in groups with a previous hospital admission for mental disorders, and in persons with previous cardiovascular disease. Gradual increases in summer temperatures were associated with mortality in people older than 80 years, and with mortality in groups with a previous myocardial infarction and with chronic obstructive pulmonary disease (COPD) in the population younger than 65 years. During winter, mortality was associated with a decrease in temperature particularly in men and with the duration of cold spells for the population older than 80. A history of hospitalization for myocardial infarction increased the odds associated with cold temperatures among the population older than 65. Previous mental disease or substance abuse increased the odds of death among the population younger than 65. CONCLUSION: To increase effectiveness, we suggest preventive efforts should not assume susceptible groups are the same for warm and cold days and heat and cold waves, respectively.
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spelling pubmed-39557712014-04-24 Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden Rocklöv, Joacim Forsberg, Bertil Ebi, Kristie Bellander, Tom Glob Health Action Original Article BACKGROUND: Ambient temperatures can cause an increase in mortality. A better understanding is needed of how health status and other factors modify the risk associated with high and low temperatures, to improve the basis of preventive measures. Differences in susceptibility to temperature and to heat and cold wave duration are relatively unexplored. OBJECTIVES: We studied the associations between mortality and temperature and heat and cold wave duration, stratified by age and individual and medical factors. METHODS: Deaths among all residents of Stockholm County between 1990 and 2002 were linked to discharge diagnosis data from hospital admissions, and associations were examined using the time stratified case-crossover design. Analyses were stratified by gender, age, pre-existing disease, country of origin, and municipality level wealth, and adjusted for potential confounding factors. RESULTS: The effect on mortality by heat wave duration was higher for lower ages, in areas with lower wealth, for hospitalized patients younger than age 65. Odds were elevated among females younger than age 65, in groups with a previous hospital admission for mental disorders, and in persons with previous cardiovascular disease. Gradual increases in summer temperatures were associated with mortality in people older than 80 years, and with mortality in groups with a previous myocardial infarction and with chronic obstructive pulmonary disease (COPD) in the population younger than 65 years. During winter, mortality was associated with a decrease in temperature particularly in men and with the duration of cold spells for the population older than 80. A history of hospitalization for myocardial infarction increased the odds associated with cold temperatures among the population older than 65. Previous mental disease or substance abuse increased the odds of death among the population younger than 65. CONCLUSION: To increase effectiveness, we suggest preventive efforts should not assume susceptible groups are the same for warm and cold days and heat and cold waves, respectively. Co-Action Publishing 2014-03-12 /pmc/articles/PMC3955771/ /pubmed/24647126 http://dx.doi.org/10.3402/gha.v7.22737 Text en © 2014 Joacim Rocklöv et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Rocklöv, Joacim
Forsberg, Bertil
Ebi, Kristie
Bellander, Tom
Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden
title Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden
title_full Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden
title_fullStr Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden
title_full_unstemmed Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden
title_short Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden
title_sort susceptibility to mortality related to temperature and heat and cold wave duration in the population of stockholm county, sweden
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3955771/
https://www.ncbi.nlm.nih.gov/pubmed/24647126
http://dx.doi.org/10.3402/gha.v7.22737
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