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Association between greenness, urbanicity, and birth weight.
- Source :
-
The Science of the total environment [Sci Total Environ] 2016 Jan 15; Vol. 542 (Pt A), pp. 750-6. Date of Electronic Publication: 2015 Nov 05. - Publication Year :
- 2016
-
Abstract
- Background: More than half of the world's population lives in urban environments. Due to urban related factors (e.g. higher air pollution), urban residents may face higher risk of adverse health outcomes, while access to green space could benefit health.<br />Purpose: We explored associations between urban and green land-use and birth weight.<br />Methods: Connecticut, U.S., birth certificate data (2000-2006) were acquired (n=239,811), and land-use data were obtained from the National Land Cover Database. We focused on three land-uses; urban space, urban open space, and green space (i.e. forest, shrub, herbaceous, and cultivated land). We estimated fractions of greenness and urbanicity within 250 m from residence. A linear mixed effects model was conducted for birth weight and a logistic mixed effects model for low birth weight (LBW) and small for gestational age (SGA).<br />Results: An interquartile range (IQR) increment in the fraction of green space within 250 m of residence was associated with 3.2g (95% Confidence Interval [0.4, 6.0]) higher birth weight. Similarly, an IQR increase in green space was associated with 7.6% [2.6, 12.4] decreased risk of LBW. Exposure to urban space was negatively correlated with green space (Pearson correlation=-0.88), and it showed negative association with birth outcomes. Results were generally robust with different buffer sizes and controlling for fine particles (PM2.5) and traffic.<br />Conclusions: We found protective associations by green space on birth outcomes. Increasing green space and/or reducing urban space (e.g. the greening of city environments) may reduce the risk of adverse birth outcomes such as LBW and SGA. Populations living in urban environments will grow in the next half century, and allocation of green space among urban areas may play a critical role for public health in urban planning.<br /> (Copyright © 2015 Elsevier B.V. All rights reserved.)
- Subjects :
- Adult
Connecticut epidemiology
Conservation of Natural Resources statistics & numerical data
Female
Humans
Infant, Low Birth Weight
Infant, Newborn
Infant, Small for Gestational Age
Pregnancy
Socioeconomic Factors
Air Pollution statistics & numerical data
Birth Weight
Pregnancy Outcome epidemiology
Urbanization trends
Subjects
Details
- Language :
- English
- ISSN :
- 1879-1026
- Volume :
- 542
- Issue :
- Pt A
- Database :
- MEDLINE
- Journal :
- The Science of the total environment
- Publication Type :
- Academic Journal
- Accession number :
- 26546769
- Full Text :
- https://doi.org/10.1016/j.scitotenv.2015.10.111