Greenspace and children's lung function in China: A cross-sectional study between 2013 and 2015

Area of Science:

• Environmental Health
• Pediatric Pulmonology
• Urban Planning

Background:

• Children's lung function is crucial for long-term health.
• Urban environments may negatively impact respiratory health.
• Understanding the role of greenspace is vital for public health interventions.

Purpose of the Study:

• To investigate the association between greenspace density and proximity and children's lung function.
• To explore potential mediating factors, such as air pollution.
• To identify specific population subgroups that may benefit most from greenspace.

Main Methods:

• Spirometry measurements of lung function (FEV1, FVC, PEF, FEF25, FEF75) in 913 children.
• Calculation of outdoor surrounding greenspace index and residential proximity to greenspace.
• Parental surveys and structural equation modeling to assess relationships and mediating effects.

Main Results:

• Increased greenspace density correlated with decreased FVC but improved FEV1/FVC, PEF, and FEF25.
• Closer residential proximity to greenspace was linked to increased FEV1 and FVC.
• Greenspace was associated with lower air pollution, which in turn improved lung function.

Conclusions:

• Both greenspace density and proximity may influence children's lung function, but through potentially different pathways.
• Greenspace may offer a protective effect against air pollution, benefiting respiratory health.
• Targeted urban planning incorporating greenspace can support pediatric lung health.