Ma Y, Ye G, Tang S
Institute of Child and Adolescent Health, Beijing Medical University.
Zhonghua Yi Xue Za Zhi. 1997 Oct;77(10):774-5.
To study the effects on the neuro-behavioral development of neonates exposed to low levels of lead in utero.
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).
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.
Blood lead levels of less than 0.48 mumol/L could still have harmful effects on the development of children.
研究子宫内暴露于低水平铅对新生儿神经行为发育的影响。
选取131例新生儿，采用原子吸收光谱仪测定其脐血铅水平。采用新生儿行为神经评定法（NBNA）对新生儿的神经行为认知能力进行评估。
血铅水平大于或等于0.29μmol/L的新生儿NBNA评分明显低于血铅水平低于0.14μmol/L的新生儿，差异有高度显著性。
血铅水平低于0.48μmol/L仍可能对儿童发育产生有害影响。
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