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Article: Development of the Adjusted Wind Chill Equivalent Temperature (AWCET) for cold mortality assessment across a subtropical city: validation and comparison with a spatially-controlled time-stratified approach

TitleDevelopment of the Adjusted Wind Chill Equivalent Temperature (AWCET) for cold mortality assessment across a subtropical city: validation and comparison with a spatially-controlled time-stratified approach
Authors
KeywordsCold stress
Mortality assessment
Biometeorological index
Wind chill
Subtropical
Issue Date2019
PublisherBioMed Central Ltd. The Journal's web site is located at http://www.biomedcentral.com/bmcpublichealth/
Citation
BMC Public Health, 2019, v. 19, p. article no. 1290 How to Cite?
AbstractBackground: Global warming has reduced the adaptability of the people living in subtropical regions to cope up with cold stress due to lengthening of hot days and shortening of transition period from hot to cold weather. However, existing studies on measuring cold stress are based on biometeorological indices designed for temperate regions. This may overestimate the impact of wind chill on mortality risk in subtropical cities. Methods: This study developed an Adjusted Wind Chill Equivalent Temperature (AWCET) index. A spatially-controlled time-stratified approach was applied to evaluate the ability of AWCET for estimating cold mortality in subtropical cities, based on a mortality dataset (2008–2012) in Hong Kong. Results: The use of AWCET could indicate increase in all-cause, cardiovascular, respiratory, and cancer-related mortality risk during the days with average temperature < = 1st [11.0 °C], <= 3rd [12.6 °C] and < = 5th [13.4 °C] percentiles. The results were stable and consistent based on both log-linear and curve-linear relationships between AWCET and mortality risk. AWCET was also compared with the New Wind Chill Equivalent Temperature (NWCET) designed for temperate regions, and has found that higher magnitude of mortality risk would be found when using AWCET for assessing all-cause and cause-specific mortality in Hong Kong, for days with average temperature < = 1st, <= 3rd and < = 5th percentiles. Conclusions: AWCET is validated to be effective to access cold mortality in the context of subtropical cities. The use of AWCET may enhance the cold weather warning system in subtropical cities, as a supplementary tool to help demonstrating small administrative-level perceived temperature with volunteered geographic information.
Persistent Identifierhttp://hdl.handle.net/10722/278838
ISSN
2018 Impact Factor: 2.567
2015 SCImago Journal Rankings: 1.372
PubMed Central ID

 

DC FieldValueLanguage
dc.contributor.authorHo, HC-
dc.contributor.authorWong, MS-
dc.contributor.authorAbbas, S-
dc.contributor.authorZhu, R-
dc.date.accessioned2019-10-21T02:14:58Z-
dc.date.available2019-10-21T02:14:58Z-
dc.date.issued2019-
dc.identifier.citationBMC Public Health, 2019, v. 19, p. article no. 1290-
dc.identifier.issn1471-2458-
dc.identifier.urihttp://hdl.handle.net/10722/278838-
dc.description.abstractBackground: Global warming has reduced the adaptability of the people living in subtropical regions to cope up with cold stress due to lengthening of hot days and shortening of transition period from hot to cold weather. However, existing studies on measuring cold stress are based on biometeorological indices designed for temperate regions. This may overestimate the impact of wind chill on mortality risk in subtropical cities. Methods: This study developed an Adjusted Wind Chill Equivalent Temperature (AWCET) index. A spatially-controlled time-stratified approach was applied to evaluate the ability of AWCET for estimating cold mortality in subtropical cities, based on a mortality dataset (2008–2012) in Hong Kong. Results: The use of AWCET could indicate increase in all-cause, cardiovascular, respiratory, and cancer-related mortality risk during the days with average temperature < = 1st [11.0 °C], <= 3rd [12.6 °C] and < = 5th [13.4 °C] percentiles. The results were stable and consistent based on both log-linear and curve-linear relationships between AWCET and mortality risk. AWCET was also compared with the New Wind Chill Equivalent Temperature (NWCET) designed for temperate regions, and has found that higher magnitude of mortality risk would be found when using AWCET for assessing all-cause and cause-specific mortality in Hong Kong, for days with average temperature < = 1st, <= 3rd and < = 5th percentiles. Conclusions: AWCET is validated to be effective to access cold mortality in the context of subtropical cities. The use of AWCET may enhance the cold weather warning system in subtropical cities, as a supplementary tool to help demonstrating small administrative-level perceived temperature with volunteered geographic information.-
dc.languageeng-
dc.publisherBioMed Central Ltd. The Journal's web site is located at http://www.biomedcentral.com/bmcpublichealth/-
dc.relation.ispartofBMC Public Health-
dc.rightsBMC Public Health. Copyright © BioMed Central Ltd.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectCold stress-
dc.subjectMortality assessment-
dc.subjectBiometeorological index-
dc.subjectWind chill-
dc.subjectSubtropical-
dc.titleDevelopment of the Adjusted Wind Chill Equivalent Temperature (AWCET) for cold mortality assessment across a subtropical city: validation and comparison with a spatially-controlled time-stratified approach-
dc.typeArticle-
dc.identifier.emailHo, HC: hcho21@hku.hk-
dc.identifier.authorityHo, HC=rp02482-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1186/s12889-019-7612-5-
dc.identifier.pmid31615481-
dc.identifier.pmcidPMC6794828-
dc.identifier.scopuseid_2-s2.0-85073427113-
dc.identifier.hkuros308039-
dc.identifier.volume19-
dc.identifier.spagearticle no. 1290-
dc.identifier.epagearticle no. 1290-
dc.publisher.placeUnited Kingdom-

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