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Activity Number: 86
Type: Contributed
Date/Time: Sunday, August 3, 2014 : 4:00 PM to 5:50 PM
Sponsor: Section on Statistics and the Environment
Abstract #311578 View Presentation
Title: Land-Use Effects on Adverse Birth Outcomes
Author(s): Keita Ebisu*+ and Theodore Holford and Michelle L. Bell
Companies: Yale and Yale and Yale
Keywords: Environmental Epidemiology ; Birth Outcomes ; Land-use
Abstract:

The degree of urbanicity around a residence likely represents several aspects of environmental exposure such as air pollution or noise. We investigated whether urbanicity is associated with adverse birth outcomes. We used birth certificate data of Connecticut for 2000-2006 (n=239,811), and collected type of land-use within 250m from mothers' homes. The fraction of urban land-use was linked to birth weight with a linear mixed effect model, and to low birth weight (LBW, < 2,500g) and small for gestational age (SGA) with logistic regression. Results indicated that an interquartile increase in urban land-use within 250m from residence was associated with 8.6g (95% confidence interval (CI): 5.0, 12.2) decrease in birth weight after adjusting covariates. Similarly, this increment in urban land use is associated with 18.4% (95% CI: 10.4, 27.0) increase in LBW and 9.2% (95% CI: 5.7, 13.0) increase in SGA. There was dose-response relationship between intensity of urban land-use and birth outcomes. Conversely, we observed that forest land-use has protective effect on all three adverse birth outcomes. Our findings indicate associations between land-use around a residence and birth outcomes.


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