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Intellectual Impairment in Children Exposed to Polychlorinated Biphenyls in Utero NEJM 335:783-789, Jacobson,J.L.,et al, 1996 See this aricle in Pubmed Article Abstract Prenatal exposure to polychlorinated biphenyls was associated with lower full scale and verbal IQ scores after control for potential confounding variables such as socioeconomic status(P=0.02).The strongest effects related to memory and attention.The most highly exposed children were three times as likely to have low average IQ scores(P<0.001)and twice as likely to be at least two years behind in reading comprehension(P=0.03). Although larger quantities of polychlorinated biphenyls are transferred by breast-feeding than in utero,there were deficits only in association with transplacental exposure suggesting that the developing fetal brain is particularly sensitive to these compounds.In utero exposure to polychlorinated biphenyls in concentrations slightly higher than those in the general population can have a long term impact on intellectual function.

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(click to filter results - removes previous filter) intellectual deficit intelligence quotient intelligence testing in children intrauterine neurotoxin polychlorinated biphenyls psychological testing psychological testing,children toxins,nervous system

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