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

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dc.contributor.author Temam, Sofia
dc.contributor.author Antó i Boqué, Josep Maria
dc.contributor.author Basagaña Flores, Xavier
dc.contributor.author Bousquet, Jean
dc.contributor.author Carsin, Anne-Elie
dc.contributor.author Sunyer Deu, Jordi
dc.contributor.author Nieuwenhuijsen, Mark J.
dc.contributor.author Jacquemin Leonard, Bénédicte
dc.date.accessioned 2019-04-02T10:01:54Z
dc.date.available 2019-04-02T10:01:54Z
dc.date.issued 2017
dc.identifier.citation Temam S, Burte E, Adam M, Antó JM, Basagaña X, Bousquet J et al. Socioeconomic position and outdoor nitrogen dioxide (NO2) exposure in Western Europe: A multi-city analysis. Environ Int. 2017 Apr;101:117-124. DOI: 10.1016/j.envint.2016.12.026
dc.identifier.issn 0160-4120
dc.identifier.uri http://hdl.handle.net/10230/37022
dc.description.abstract Background: Inconsistent associations between socioeconomic position (SEP) and outdoor air pollution have been reported in Europe, but methodological differences prevent any direct between-study comparison. Objectives: 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. Methods: 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 (I2). Results: 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 (I2 > 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. Conclusions: 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.
dc.description.sponsorship The ESCAPE study, funded by the European Community's Seventh Framework Program (FP7/2007-2011) under grant agreement no. 211250 (http://www.escapeproject.eu/).
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.relation.ispartof Environment International. 2017 Apr;101:117-24
dc.rights © Elsevier http://dx.doi.org/10.1016/j.envint.2016.12.026
dc.title Socioeconomic position and outdoor nitrogen dioxide (NO2) exposure in Western Europe: A multi-city analysis
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1016/j.envint.2016.12.026
dc.subject.keyword Europe
dc.subject.keyword Socioeconomic position
dc.subject.keyword Air pollution
dc.subject.keyword Environmental inequality
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/211250
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/acceptedVersion


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