Please use this identifier to cite or link to this item: https://doi.org/10.1186/s12940-019-0476-4
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dc.titleParticulate air pollution on cardiovascular mortality in the tropics: Impact on the elderly
dc.contributor.authorYap, J.
dc.contributor.authorNg, Y.
dc.contributor.authorYeo, K.K.
dc.contributor.authorSahlén, A.
dc.contributor.authorLam, C.S.P.
dc.contributor.authorLee, V.
dc.contributor.authorMa, S.
dc.date.accessioned2021-12-29T05:45:09Z
dc.date.available2021-12-29T05:45:09Z
dc.date.issued2019
dc.identifier.citationYap, J., Ng, Y., Yeo, K.K., Sahlén, A., Lam, C.S.P., Lee, V., Ma, S. (2019). Particulate air pollution on cardiovascular mortality in the tropics: Impact on the elderly. Environmental Health: A Global Access Science Source 18 (1) : 34. ScholarBank@NUS Repository. https://doi.org/10.1186/s12940-019-0476-4
dc.identifier.issn1476-069X
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/212470
dc.description.abstractBackground: Air pollution has a significant health impact. Most data originate from temperate regions. We aim to study the health impact of air pollution, particularly among the elderly, in a tropical region. Methods: A daily time-series analysis was performed to estimate excess risk (ER) of various air pollutants on daily death counts amongst the general population in Singapore from 2001 to 2013. Air pollutants included particulate matters smaller than 10 ?m, and 2.5 ?m (PM 10 , PM 2.5 ), carbon monoxide (CO), nitrogen dioxide (NO 2 ), ozone (O 3 ) and sulphur dioxide (SO 2 ). The studied outcomes were non-accidental and cardiovascular mortality. Single-day lag and distributed lag models were studied and adjusted for confounders. Results: In single-day lag models, a 10 ?g/m 3 increase in particulate matter was associated with significant increases in non-accidental (PM 10 ER: 0.627%; 95% confidence interval (CI): 0.260-0.995% and PM 2.5 ER: 0.660%; 95% CI: 0.204-1.118%) and cardiovascular mortality (PM 10 ER: 0.897; 95% CI: 0.283-1.516 and PM 2.5 ER: 0.883%; 95% CI: 0.121-1.621%). This was significant in the elderly ? 65 years but not in those < 65 years and were seen in the acute phase of lag 0-5 days. Effects by other pollutants were minimal. For cardiovascular mortality, the effects turned protective at a cumulative lag of 30 days in the elderly and could due to "harvesting". Conclusions: These first contemporary population-based data from an equatorial country with tropical climate show that exposure to particulate air pollution was significantly associated with non-accidental mortality and cardiovascular mortality, especially in the elderly. © 2019 The Author(s).
dc.publisherBioMed Central Ltd.
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceScopus OA2019
dc.subjectAir pollution
dc.subjectCardiovascular mortality
dc.subjectElderly
dc.subjectTropics
dc.typeArticle
dc.contributor.departmentSAW SWEE HOCK SCHOOL OF PUBLIC HEALTH
dc.description.doi10.1186/s12940-019-0476-4
dc.description.sourcetitleEnvironmental Health: A Global Access Science Source
dc.description.volume18
dc.description.issue1
dc.description.page34
dc.published.statePublished
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