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Traffic-related air pollution and spectacles use in schoolchildren

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dc.contributor.author Dadvand, Payam
dc.contributor.author Nieuwenhuijsen, Mark J.
dc.contributor.author Basagaña Flores, Xavier
dc.contributor.author Álvarez Pedrerol, Mar
dc.contributor.author Dalmau Bueno, Albert
dc.contributor.author Cirach, Marta
dc.contributor.author Rivas, Ioar
dc.contributor.author Brunekreef, Bert
dc.contributor.author Querol, Xavier
dc.contributor.author Morgan, Ian G.
dc.contributor.author Sunyer Deu, Jordi
dc.date.accessioned 2017-05-23T08:05:58Z
dc.date.available 2017-05-23T08:05:58Z
dc.date.issued 2017
dc.identifier.citation Dadvand P, Nieuwenhuijsen MJ, Basagaña Flores X, Alvarez Pedrerol M, Dalmau Bueno A, Cirach M et al. Traffic-related air pollution and spectacles use in schoolchildren. PLoS ONE. 2017;12(4):e0167046. DOI: 10.1371/journal.pone.0167046
dc.identifier.issn 1932-6203
dc.identifier.uri http://hdl.handle.net/10230/32142
dc.description.abstract Purpose: To investigate the association between exposure to traffic-related air pollution and use of spectacles (as a surrogate measure for myopia) in schoolchildren. Methods: We analyzed the impact of exposure to NO2 and PM2.5 light absorbance at home (predicted by land-use regression models) and exposure to NO2 and black carbon (BC) at school (measured by monitoring campaigns) on the use of spectacles in a cohort of 2727 schoolchildren (7–10 years old) in Barcelona (2012–2015). We conducted cross-sectional analyses based on lifelong exposure to air pollution and prevalent cases of spectacles at baseline data collection campaign as well as longitudinal analyses based on incident cases of spectacles use and exposure to air pollution during the three-year period between the baseline and last data collection campaigns. Logistic regression models were developed to quantify the association between spectacles use and each of air pollutants adjusted for relevant covariates. Results: An interquartile range increase in exposure to NO2 and PM2.5 absorbance at home was respectively associated with odds ratios (95% confidence intervals (CIs)) for spectacles use of 1.16 (1.03, 1.29) and 1.13 (0.99, 1.28) in cross-sectional analyses and 1.15 (1.00, 1.33) and 1.23 (1.03, 1.46) in longitudinal analyses. Similarly, odds ratio (95% CIs) of spectacles use associated with an interquartile range increase in exposures to NO2 and black carbon at school was respectively 1.32 (1.09, 1.59) and 1.13 (0.97, 1.32) in cross-sectional analyses and 1.12 (0.84, 1.50) and 1.27 (1.03, 1.56) in longitudinal analyses. These findings were robust to a range of sensitivity analyses that we conducted. Conclusion: We observed increased risk of spectacles use associated with exposure to traffic-related air pollution. These findings require further confirmation by future studies applying more refined outcome measures such as quantified visual acuity and separating different types of refractive errors.
dc.description.sponsorship The research leading to these results has received funding from the European Research Council under the ERC Grant Agreement number 268479 –the BREATHE project. Payam Dadvand is funded by a Ramón y Cajal fellowship (RYC-2012-10995) awarded by the Spanish Ministry of Economy and Competitiveness.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Public Library of Science (PLoS)
dc.relation.ispartof PLoS ONE. 2017;12(4):e0167046
dc.rights © 2017 Dadvand et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.title Traffic-related air pollution and spectacles use in schoolchildren
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1371/journal.pone.0167046
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/268479
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/publishedVersion


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