Abstract
IntroductionGreenspaces generate several perceived health benefits, including an overall improvement in the quality of life. However, little is known about the effects of greenspaces through pregnancy and early childhood in promoting health-related quality of life (HRQoL) among children. MethodParticipants were from the Mothers and their Children's Health Study (MatCH), a 2016/17 sub-study of a national prospective study since 1996 known as the Australian Longitudinal Study on Women's Health (ALSWH). Mothers (n=3,048) self-reported on their three youngest children aged under 13 years (n=5,799, mean=7.0 years, s.d=3.2 years) using the Pediatric Quality of Life Inventory (PedsQL) to measure their HRQoL. Since 1996, annual exposure to green and non-green vegetation was measured using two remote sensing indicators: Normalized Difference Vegetation Index (NDVI) and fractional cover of non-photosynthetic vegetation (fNPV), respectively, for 100 m and 500 m buffer zone around maternal residential address. Multiple exposure windows were calculated including during pregnancy, the first year of life and child's lifetime exposure. Generalised estimating equations (GEE) models, adjusting for potential confounders, were used for analyses. ResultsA 1 standard deviation increase in NDVI greenness within 500 m buffer around the home at early life and during childhood was positively associated with higher HRQoL in the total scores and psychological health summary scores in the crude model only. No association was found between fNPV (non-green vegetation) at 100 m and 500 m circular buffers and children's HRQoL. The overall findings from our models remained consistent based on a series of sensitivity analyses, including the impact of maternal residential mobility status and geocoding method on the effect estimates. ConclusionOur study revealed that surrounding residential greenspace was not associated with children's HRQoL. Further longitudinal studies are required to better understand the influence of greenspace at different periods of exposure on the health and wellbeing of children.
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