alexa Main and interaction effects of iron, zinc, lead, and parenting on children's cognitive outcomes.
Geology & Earth Science

Geology & Earth Science

Journal of Geography & Natural Disasters

Author(s): HubbsTait L, Mulugeta A, Bogale A, Kennedy TS, Baker ER, , HubbsTait L, Mulugeta A, Bogale A, Kennedy TS, Baker ER,

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Abstract This study examined relations of blood lead < 10 microg/dL, iron, zinc, and parenting to Head Start children's (N = 112) scores on Peabody Picture Vocabulary Test-III (PPVT-III) and McCarthy Scales of Children's Abilities (MSCA). Venous whole blood and plasma samples were analyzed for lead and zinc by ICP-MS and iron status was assessed by serum transferrin receptors. Hierarchical regressions revealed significant effects of lead on MSCA perceptual scores and iron on PPVT-III and MSCA verbal scores. Children with lead > 2.5 microg/dL had significantly lower MSCA perceptual scores than children < 2.5 microg/dL. Permissive parenting significantly exacerbated negative effects of higher lead or lower iron on children's perceptual or verbal scores, respectively. This article was published in Dev Neuropsychol and referenced in Journal of Geography & Natural Disasters

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