The analysis, published in Environment Health Perspectives, was based on data from 1,500 children of the INMA -- Environment and Childhood Project cohort in Sabadell and Valencia, collected during 2003-2013. The ISGlobal team analysed residential surrounding greenness -- at 100, 300 and 500 metres distance- at birth, 4-5 years and 7 years of age. Two types of attention tests were performed at 4-5 and 7 years of age. The research shows that children with higher greenness around their homes had better scores in the attention tests.

Payam Dadvand, ISGlobal researcher and first author of the study, emphasizes "this is the first time that the impact of lifelong residential exposure to green spaces on attention capacity in children has been studied." These results "underline the importance of green areas in cities for children's health and brain development," says Dadvand.

Jordi Sunyer, study coordinator and head of the Child Health Programme at ISGlobal, points out that "the possibility that exposure to different types of vegetation might have different impacts on neurodevelopment remains an open question." Therefore, Sunyer considers further studies should be done in other settings with different climates and vegetation.

"Green spaces in cities promote social connections and physical activity and reduce exposure to air pollution and noise, and are therefore essential for the development of the future generations' brains" adds the study coordinator.

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Materials provided by Barcelona Institute for Global Health (ISGlobal). Note: Content may be edited for style and length.

Journal Reference:

1. Payam Dadvand, Christina Tischer, Marisa Estarlich, Sabrina Llop, Albert Dalmau-Bueno, Monica López-Vicente, Antònia Valentín, Carmen de Keijzer, Ana Fernández-Somoano, Nerea Lertxundi, Cristina Rodriguez-Dehli, Mireia Gascon, Monica Guxens, Daniela Zugna, Xavier Basagaña, Mark J. Nieuwenhuijsen, Jesus Ibarluzea, Ferran Ballester, Jordi Sunyer. Lifelong Residential Exposure to Green Space and Attention: A Population-based Prospective Study. Environmental Health Perspectives, 2017; 125 (9) DOI: 10.1289/EHP694