Urban green spaces and behavioral and cognitive development in children: a health impact assessment of the Barcelona "Eixos Verds" Plan (Green Axis Plan)

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  • dc.contributor.author Opbroek, Jet
  • dc.contributor.author Pereira Barboza, Evelise
  • dc.contributor.author Nieuwenhuijsen, Mark J.
  • dc.contributor.author Dadvand, Payam
  • dc.contributor.author Mueller, Natalie, 1988-
  • dc.date.accessioned 2024-09-03T14:26:08Z
  • dc.date.embargoEnd info:eu-repo/date/embargoEnd/2025-12-14
  • dc.date.issued 2024
  • dc.description.abstract Background: Urban environments lack natural features, while nature exposure in cities has been associated with health benefits, including children's neurodevelopment. Through extensive street greening, Barcelona's Eixos Verds (Green Axis) Plan enhances safety, environment, and climate resilience. We aimed to assess the Eixos Verds Plan's potential impact on children's behavioral and cognitive development due to the increased green space expected under the Eixos Verds implementation. Methods: We performed a quantitative health impact assessment for Barcelona children at census-tract level (n = 1068). We assessed the Eixos Verds Plan's impact by comparing baseline green space distribution with the proposed plan, translating it into percentage green area (%GA) and Normalized Difference Vegetation Index (NDVI). By combining these exposure metrics with child-specific risk estimates and population data, we estimated potential improvements in children's behavioral and cognitive development due to full Eixos Verds implementation. Results: With the full Eixos Verds implementation, citywide, %GA increased by 6.9% (IQR: 6.4%; range: 0-23.1%) and NDVI by 0.065 (IQR: 0.083; range: 0.000-0.194). Child behavioral and cognitive development outcomes are expected to improve compared to the baseline. Based on NDVI increases, children's Total Difficulties and Hyperactivity/Inattention scores, based on the Strengths and Difficulties Questionnaire (SDQ), are projected to decrease by 5% (95% CI: 0-15%) and 6% (95% CI: 0-17%). Working Memory and Superior Working Memory scores are expected to increase by 4% and 5%, respectively, based on the computerized n-back test, while the Inattentiveness score could be reduced by 1%, based on the computerized attentional test (ANT). Interpretation: Urban greening as planning tool can improve behavioral and cognitive development in city children. Methods and results of our study are applicable to many cities worldwide, and similar results for children of real-life urban greening interventions can be expected.
  • dc.description.sponsorship We would like to thank Rosa López Olmos and colleagues (Barcelona City Council) for providing us with information about the Eixos Verds Plan and for facilitating the geo-coded Eixos Verds shapefiles. The study has received funding from the Spanish Ministry of Science and Innovation and State Research Agency through the “Centro de Excelencia Severo Ochoa 2019–2023” Program (CEX 2018-000806-S) and support from GoGreenRoutes through the European Union's Horizon 2020 Research and Innovation program under grant agreement No. 869764. We would like to thank Núria Botella for advising us on the statistical analyses and interpretation.
  • dc.embargo.liftdate 2025-12-14
  • dc.format.mimetype application/pdf
  • dc.identifier.citation Opbroek J, Pereira Barboza E, Nieuwenhuijsen M, Dadvand P, Mueller N. Urban green spaces and behavioral and cognitive development in children: a health impact assessment of the Barcelona "Eixos Verds" Plan (Green Axis Plan). Environ Res. 2024 Mar 1;244:117909. DOI: 10.1016/j.envres.2023.117909
  • dc.identifier.doi http://dx.doi.org/10.1016/j.envres.2023.117909
  • dc.identifier.issn 0013-9351
  • dc.identifier.uri http://hdl.handle.net/10230/60995
  • dc.language.iso eng
  • dc.publisher Elsevier
  • dc.relation.ispartof Environ Res. 2024 Mar 1;244:117909
  • dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/869764
  • dc.rights © Elsevier http://dx.doi.org/10.1016/j.envres.2023.117909
  • dc.rights.accessRights info:eu-repo/semantics/embargoedAccess
  • dc.subject.keyword Behavioral development
  • dc.subject.keyword Children
  • dc.subject.keyword Cognitive development
  • dc.subject.keyword Eixos Verds plan
  • dc.subject.keyword Health impact assessment
  • dc.subject.keyword Urban green space
  • dc.title Urban green spaces and behavioral and cognitive development in children: a health impact assessment of the Barcelona "Eixos Verds" Plan (Green Axis Plan)
  • dc.type info:eu-repo/semantics/article
  • dc.type.version info:eu-repo/semantics/acceptedVersion

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Articles (Barcelona Institute for Global Health (ISGlobal) – Campus Mar)
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