High prevalence of elevated blood lead levels in both rural and urban Iowa newborns: Spatial patterns and area-level covariates

PloS One
Margaret CarrelAudrey Saftlas

Abstract

Lead in maternal blood can cross the placenta and result in elevated blood lead levels in newborns, potentially producing negative effects on neurocognitive function, particularly if combined with childhood lead exposure. Little research exists, however, into the burden of elevated blood lead levels in newborns, or the places and populations in which elevated lead levels are observed in newborns, particularly in rural settings. Using ~2300 dried bloods spots collected within 1-3 days of birth among Iowa newborns, linked with the area of mother's residence at the time of birth, we examine the spatial patterns of elevated (>5 μg/dL) blood lead levels and the ecological-level predictors of elevated blood lead levels. We find that one in five newborns exceed the 5 μg/dL action level set by the US Centers for Disease Control & Prevention (CDC). Bayesian spatial zero inflated regression indicates that elevated blood lead in newborns is associated with areas of increased pre-1940s housing and childbearing-age women with low educational status in both rural and urban settings. No differences in blood lead levels or the proportion of children exceeding 5 μg/dL are observed between urban and rural maternal residence, though a spatial clu...Continue Reading

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Citations

Jan 19, 2018·The Journal of School Nursing : the Official Publication of the National Association of School Nurses·Krista SchroederTerri Lipman
Mar 4, 2020·International Journal of Environmental Research and Public Health·Deniz YeterMichael Aschner
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Sep 22, 2020·Journal of Public Health Management and Practice : JPHMP·Alejandro Azofeifa, Alek Sripipatana

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