[Influence of prenatal exposure to low levels of lead on the neuro-behavioral development of neonates].
OBJECTIVE
To study the effects on the neuro-behavioral development of neonates exposed to low levels of lead in utero.


METHODS
131 neonates were selected and their umbilical blood lead level was determined by Atomic Absorption Spectrometer. The neurobehavioral-cognitive performance of neonates was evaluated by Neonatal Behavioral Neurological Assessment (NBNA).


RESULTS
NBNA scores in neonates with blood lead levels greater than or equal to 0.29 mumol/L were markedly lower than those with less than 0.14 mumol/L, and the difference was highly significant.


CONCLUSIONS
Blood lead levels of less than 0.48 mumol/L could still have harmful effects on the development of children.
Institute of Child and Adolescent Health, Beijing Medical University.
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Ma
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Ye
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Tang
D002657:Child Development; D005260:Female; D005312:Fetal Blood / Q000737:chemistry; D006801:Humans; D018730:Infant Behavior / Q000187:drug effects*; D007231:Infant, Newborn; D007854:Lead / Q000009:adverse effects*; D008297:Male; D018811:Maternal Exposure; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects
D007854:Lead