Green spaces and respiratory, cardiometabolic, and neurodevelopmental outcomes: An individual-participant data meta-analysis of > 35.000 European children



Fernandes, Amanda, Avraam, Demetris, Cadman, Tim, Dadvand, Payam, Guxens, Monica, Binter, Anne-Claire, de Moira, Angela Pinot, Nieuwenhuijsen, Mark, Duijts, Liesbeth, Julvez, Jordi
et al (show 28 more authors) (2024) Green spaces and respiratory, cardiometabolic, and neurodevelopmental outcomes: An individual-participant data meta-analysis of > 35.000 European children ENVIRONMENT INTERNATIONAL, 190. 108853-. ISSN 0160-4120, 1873-6750

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Abstract

Studies evaluating the benefits and risks of green spaces on children's health are scarce. The present study aimed to examine the associations between exposure to green spaces during pregnancy and early childhood with respiratory, cardiometabolic, and neurodevelopmental outcomes in school-age children. We performed an Individual-Participant Data (IPD) meta-analysis involving 35,000 children from ten European birth cohorts across eight countries. For each participant, we calculated residential Normalized Difference Vegetation Index (NDVI) within a 300 m buffer and the linear distance to green spaces (meters) during prenatal life and childhood. Multiple harmonized health outcomes were selected: asthma and wheezing, lung function, body mass index, diastolic and systolic blood pressure, non-verbal intelligence, internalizing and externalizing problems, and ADHD symptoms. We conducted a two-stage IPD meta-analysis and evaluated effect modification by socioeconomic status (SES) and sex. Between-study heterogeneity was assessed via random-effects meta-regression. Residential surrounding green spaces in childhood, not pregnancy, was associated with improved lung function, particularly higher FEV<inf>1</inf> (β = 0.06; 95 %CI: 0.03, 0.09 I<sup>2</sup> = 4.03 %, p < 0.001) and FVC (β = 0.07; 95 %CI: 0.04, 0.09 I<sup>2</sup> = 0 %, p < 0.001) with a stronger association observed in females (p < 0.001). This association remained robust after multiple testing correction and did not change notably after adjusting for ambient air pollution. Increased distance to green spaces showed an association with lower FVC (β = −0.04; 95 %CI: −0.07, −0.02, I<sup>2</sup> = 4.8, p = 0.001), with a stronger effect in children from higher SES backgrounds (p < 0.001). No consistent associations were found between green spaces and asthma, wheezing, cardiometabolic, or neurodevelopmental outcomes, with direction of effect varying across cohorts. Wheezing and neurodevelopmental outcomes showed high between-study heterogeneity, and the age at outcome assessment was only associated with heterogeneity in internalizing problems. This large European meta-analysis suggests that childhood exposure to green spaces may lead to better lung function. Associations with other respiratory outcomes and selected cardiometabolic and neurodevelopmental outcomes remain inconclusive.

Item Type: Article
Uncontrolled Keywords: Green space, Child, Lung function, Respiratory, Cardiometabolic, Neurodevelopment
Depositing User: Symplectic Admin
Date Deposited: 23 Jul 2024 13:31
Last Modified: 16 Jun 2026 20:12
DOI: 10.1016/j.envint.2024.108853
Open Access URL: https://doi.org/10.1016/j.envint.2024.108853
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3183042
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