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Tytuł pozycji:

Associations between long-term PM2.5 and ozone exposure and mortality in the Canadian Census Health and Environment Cohort (CANCHEC), by spatial synoptic classification zone

Tytuł:
Associations between long-term PM2.5 and ozone exposure and mortality in the Canadian Census Health and Environment Cohort (CANCHEC), by spatial synoptic classification zone
Autorzy:
Sabit Cakmak
Chris Hebbern
Lauren Pinault
Eric Lavigne
Jennifer Vanos
Dan Lawson Crouse
Michael Tjepkema
Temat:
Environmental sciences
GE1-350
Źródło:
Environment International, Vol 111, Iss , Pp 200-211 (2018)
Wydawca:
Elsevier, 2018.
Rok publikacji:
2018
Kolekcja:
LCC:Environmental sciences
Typ dokumentu:
article
Opis pliku:
electronic resource
Język:
English
ISSN:
0160-4120
Relacje:
http://www.sciencedirect.com/science/article/pii/S0160412017308954; https://doaj.org/toc/0160-4120
DOI:
10.1016/j.envint.2017.11.030
Dostęp URL:
https://doaj.org/article/7be8b279f1d7452b9fe0dc338541fe4a  Link otwiera się w nowym oknie
Numer akcesji:
edsdoj.7be8b279f1d7452b9fe0dc338541fe4a
Czasopismo naukowe
Studies suggest that long-term chronic exposure to fine particulate matter air pollution can increase lung cancer mortality. We analyzed the association between long term PM2.5 and ozone exposure and mortality due to lung cancer, ischemic heart disease, and chronic obstructive pulmonary disease, accounting for geographic location, socioeconomic status, and residential mobility. Subjects in the 1991 Canadian Census Health and Environment Cohort (CanCHEC) were followed for 20years, and assigned to regions across Canada based on spatial synoptic classification weather types. Hazard ratios (HR) for mortality, were related to PM2.5 and ozone using Cox proportional hazards survival models, adjusting for socioeconomic characteristics and individual confounders. An increase of 10μg/m3 in long term PM2.5 exposure resulted in an HR for lung cancer mortality of 1.26 (95% CI 1.04, 1.53); the inclusion in the model of SSC zone as a stratum increased the risk estimate to HR 1.29 (95% CI 1.06, 1.57). After adjusting for ozone, HRs increased to 1.49 (95% CI 1.23, 1.88), and HR 1.54 (95% CI 1.27, 1.87), with and without zone as a model stratum. HRs for ischemic heart disease fell from 1.25 (95% CI 1.21, 1.29) for exposure to PM2.5, to 1.13 (95% CI 1.08, 1.19) when PM2.5 was adjusted for ozone. For COPD, the 95% confidence limits included 1.0 when climate zone was included in the model. HRs for all causes of death showed spatial differences when compared to zone 3, the most populated climate zone. Exposure to PM2.5 was related to an increased risk of mortality from lung cancer, and both ozone and PM2.5 exposure were related to risk of mortality from ischemic heart disease, and the risk varied spatially by climate zone. Keywords: Air pollution, Lung cancer, Climate, Environmental health, Mortality

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