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Socioeconomic position and outdoor nitrogen dioxide (NO2) exposure in Western Europe : a multi-city analysis

Temam, Sofia and Burte, Emilie and Adam, Martin and Antó, Josep M. and Basagaña, Xavier and Bousquet, Jean and Carsin, Anne-Elie and Galobardes, Bruna and Keidel, Dirk and Künzli, Nino and Le Moual, Nicole and Sanchez, Margaux and Sunyer, Jordi and Bono, Roberto and Brunekreef, Bert and Heinrich, Joachim and de Hoogh, Kees and Jarvis, Debbie and Marcon, Alessandro and Modig, Lars and Nadif, Rachel and Nieuwenhuijsen, Mark and Pin, Isabelle and Siroux, Valérie and Stempfelet, Morgane and Tsai, Ming-Yi and Probst-Hensch, Nicole and Jacquemin, Bénédicte. (2017) Socioeconomic position and outdoor nitrogen dioxide (NO2) exposure in Western Europe : a multi-city analysis. Environment international, 101. pp. 117-124.

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Official URL: http://edoc.unibas.ch/54739/

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Abstract

Inconsistent associations between socioeconomic position (SEP) and outdoor air pollution have been reported in Europe, but methodological differences prevent any direct between-study comparison.; Assess and compare the association between SEP and outdoor nitrogen dioxide (NO2) exposure as a marker of traffic exhaust, in 16 cities from eight Western European countries.; Three SEP indicators, two defined at individual-level (education and occupation) and one at neighborhood-level (unemployment rate) were assessed in three European multicenter cohorts. NO2 annual concentration exposure was estimated at participants' addresses with land use regression models developed within the European Study of Cohorts for Air Pollution Effects (ESCAPE; http://www.escapeproject.eu/). Pooled and city-specific linear regressions were used to analyze associations between each SEP indicator and NO2. Heterogeneity across cities was assessed using the Higgins' I-squared test (I(2)).; The study population included 5692 participants. Pooled analysis showed that participants with lower individual-SEP were less exposed to NO2. Conversely, participants living in neighborhoods with higher unemployment rate were more exposed. City-specific results exhibited strong heterogeneity (I(2)>76% for the three SEP indicators) resulting in variation of the individual- and neighborhood-SEP patterns of NO2 exposure across cities. The coefficients from a model that included both individual- and neighborhood-SEP indicators were similar to the unadjusted coefficients, suggesting independent associations.; Our study showed for the first time using homogenized measures of outcome and exposure across 16 cities the important heterogeneity regarding the association between SEP and NO2 in Western Europe. Importantly, our results showed that individual- and neighborhood-SEP indicators capture different aspects of the association between SEP and exposure to air pollution, stressing the importance of considering both in air pollution health effects studies.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Chronic Disease Epidemiology > Air Pollution and Health (Künzli)
03 Faculty of Medicine > Departement Public Health > Sozial- und Präventivmedizin > Air Pollution and Health (Künzli)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
UniBasel Contributors:Keidel, Dirk and Künzli, Nino and de Hoogh, Kees and Tsai, Ming and Probst Hensch, Nicole
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0160-4120
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:12 Sep 2018 14:06
Deposited On:29 May 2017 12:02

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