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Article: The effects of air pollution on mortality in socially deprived urban areas in Hong Kong, China

TitleThe effects of air pollution on mortality in socially deprived urban areas in Hong Kong, China
Authors
KeywordsAir pollution
Case-only approach
Deprivation
Effects modification
Hong Kong
Mortality
Time series analysis
Issue Date2008
PublisherUS Department of Health and Human Services, National Institute of Environmental Health Sciences. The Journal's web site is located at http://ehp.niehs.nih.gov/
Citation
Environmental Health Perspectives, 2008, v. 116 n. 9, p. 1189-1194 How to Cite?
AbstractBackground: Poverty is a major determinant of population health, but little is known about its role in modifying air pollution effects. Objectives: We set out to examine whether people residing in socially deprived communities are at higher mortality risk from ambient air pollution. Methods: This study included 209 tertiary planning units (TPUs), the smallest units for town planning in the Special Administrative Region of Hong Kong, China. The socioeconomic status of each TPU was measured by a social deprivation index (SDI) derived from the proportions of the population with a) unemployment, b) monthly household income < US$250, c) no schooling at all, d) one-person household, e) never-married status, and f) subtenancy, from the 2001 Population Census. TPUs were classified into three levels of SDI: low, middle, and high. We performed time-series analysis with Poisson regression to examine the association between changes in daily concentrations of ambient air pollution and daily number of deaths in each SDI group for the period from January 1996 to December 2002. We evaluated the differences in pollution effects between different SDI groups using a case-only approach with logistic regression. Results: We found significant associations of nitrogen dioxide, sulfur dioxide, particulate matter with aerodynamic diameter < 10 μm, and ozone with all nonaccidental and cardiovascular mortality in areas of middle or high SDI (p < 0.05). Health outcomes, measured as all nonaccidental, cardiovascular, and respiratory mortality, in people residing in high SDI areas were more strongly associated with SO 2 and NO 2 compared with those in middle or low SDI areas. Conclusions: Neighborhood socioeconomic deprivation increases mortality risks associated with air pollution.
Persistent Identifierhttp://hdl.handle.net/10722/60332
ISSN
2015 Impact Factor: 8.443
2015 SCImago Journal Rankings: 3.529
PubMed Central ID
ISI Accession Number ID
Funding AgencyGrant Number
Health Effects Institute (HEI)
U.S. Environmental Protection Agency (EPA)R82811201
Funding Information:

Research described in this article was conducted under contract to the Health Effects Institute (HEI), an organization jointly funded by the U.S. Environmental Protection Agency (EPA) (Assistance Agreement R82811201) and automobile manufacturers.

References

 

DC FieldValueLanguage
dc.contributor.authorWong, CMen_HK
dc.contributor.authorOu, CQen_HK
dc.contributor.authorChan, KPen_HK
dc.contributor.authorChau, YKen_HK
dc.contributor.authorThach, TQen_HK
dc.contributor.authorYang, Len_HK
dc.contributor.authorChung, RYNen_HK
dc.contributor.authorThomas, GNen_HK
dc.contributor.authorPeiris, JSMen_HK
dc.contributor.authorWong, TWen_HK
dc.contributor.authorHedley, AJen_HK
dc.contributor.authorLam, THen_HK
dc.date.accessioned2010-05-31T04:08:27Z-
dc.date.available2010-05-31T04:08:27Z-
dc.date.issued2008en_HK
dc.identifier.citationEnvironmental Health Perspectives, 2008, v. 116 n. 9, p. 1189-1194en_HK
dc.identifier.issn0091-6765en_HK
dc.identifier.urihttp://hdl.handle.net/10722/60332-
dc.description.abstractBackground: Poverty is a major determinant of population health, but little is known about its role in modifying air pollution effects. Objectives: We set out to examine whether people residing in socially deprived communities are at higher mortality risk from ambient air pollution. Methods: This study included 209 tertiary planning units (TPUs), the smallest units for town planning in the Special Administrative Region of Hong Kong, China. The socioeconomic status of each TPU was measured by a social deprivation index (SDI) derived from the proportions of the population with a) unemployment, b) monthly household income < US$250, c) no schooling at all, d) one-person household, e) never-married status, and f) subtenancy, from the 2001 Population Census. TPUs were classified into three levels of SDI: low, middle, and high. We performed time-series analysis with Poisson regression to examine the association between changes in daily concentrations of ambient air pollution and daily number of deaths in each SDI group for the period from January 1996 to December 2002. We evaluated the differences in pollution effects between different SDI groups using a case-only approach with logistic regression. Results: We found significant associations of nitrogen dioxide, sulfur dioxide, particulate matter with aerodynamic diameter < 10 μm, and ozone with all nonaccidental and cardiovascular mortality in areas of middle or high SDI (p < 0.05). Health outcomes, measured as all nonaccidental, cardiovascular, and respiratory mortality, in people residing in high SDI areas were more strongly associated with SO 2 and NO 2 compared with those in middle or low SDI areas. Conclusions: Neighborhood socioeconomic deprivation increases mortality risks associated with air pollution.en_HK
dc.languageengen_HK
dc.publisherUS Department of Health and Human Services, National Institute of Environmental Health Sciences. The Journal's web site is located at http://ehp.niehs.nih.gov/en_HK
dc.relation.ispartofEnvironmental Health Perspectivesen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectAir pollutionen_HK
dc.subjectCase-only approachen_HK
dc.subjectDeprivationen_HK
dc.subjectEffects modificationen_HK
dc.subjectHong Kongen_HK
dc.subjectMortalityen_HK
dc.subjectTime series analysisen_HK
dc.subject.meshAir Pollutionen_HK
dc.subject.meshHong Kong - epidemiologyen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMortalityen_HK
dc.subject.meshSocial Classen_HK
dc.subject.meshUrban Healthen_HK
dc.titleThe effects of air pollution on mortality in socially deprived urban areas in Hong Kong, Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0091-6765&volume=116&issue=9&spage=1189&epage=1194&date=2008&atitle=The+effects+of+air+pollution+on+mortality+in+socially+deprived+urban+areas+in+Hong+Kong,+Chinaen_HK
dc.identifier.emailWong, CM: hrmrwcm@hku.hken_HK
dc.identifier.emailThach, TQ: thach@hku.hken_HK
dc.identifier.emailPeiris, JSM: malik@hkucc.hku.hken_HK
dc.identifier.emailHedley, AJ: hrmrajh@hkucc.hku.hken_HK
dc.identifier.emailLam, TH: hrmrlth@hkucc.hku.hken_HK
dc.identifier.authorityWong, CM=rp00338en_HK
dc.identifier.authorityThach, TQ=rp00450en_HK
dc.identifier.authorityPeiris, JSM=rp00410en_HK
dc.identifier.authorityHedley, AJ=rp00357en_HK
dc.identifier.authorityLam, TH=rp00326en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1289/ehp.10850en_HK
dc.identifier.pmid18795162-
dc.identifier.pmcidPMC2535621-
dc.identifier.scopuseid_2-s2.0-54149118751en_HK
dc.identifier.hkuros150733en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-54149118751&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume116en_HK
dc.identifier.issue9en_HK
dc.identifier.spage1189en_HK
dc.identifier.epage1194en_HK
dc.identifier.eissn1552-9924-
dc.identifier.isiWOS:000259020100033-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWong, CM=7404954904en_HK
dc.identifier.scopusauthoridOu, CQ=14070561800en_HK
dc.identifier.scopusauthoridChan, KP=27171298000en_HK
dc.identifier.scopusauthoridChau, YK=16300609300en_HK
dc.identifier.scopusauthoridThach, TQ=6602850066en_HK
dc.identifier.scopusauthoridYang, L=7406279703en_HK
dc.identifier.scopusauthoridChung, RYN=23988568600en_HK
dc.identifier.scopusauthoridThomas, GN=35465269900en_HK
dc.identifier.scopusauthoridPeiris, JSM=7005486823en_HK
dc.identifier.scopusauthoridWong, TW=7403531744en_HK
dc.identifier.scopusauthoridHedley, AJ=7102584095en_HK
dc.identifier.scopusauthoridLam, TH=7202522876en_HK

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