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为探讨铅对儿童神经心理、智力行为的影响,对112名7～11岁血铅水平在10.52～68.76μg/dl的儿童做了WISC—R儿童智力测定及了解其学习成绩。结果:1.不同水平血铅浓度儿童的各项测验成绩得分有随血铅浓度升高而下降的趋势,低水平血铅和高水平血铅浓度两组儿童的FIQ和VIQ有显著差异(P<0.05)。2.对FIQ<90的9例儿童进行分析,发现有8例儿童血铅浓度>40μg/dl。儿童体内铅水平高是否可影响儿童的智力和学习能力值得探讨。
To explore the effects of lead on neuropsychological and intellectual behaviors of children, WISC-R children’s intelligence was measured and their learning performance was evaluated in 112 children aged 7-11 years with a blood lead level ranging from 10.52 to 68.76 μg / dl. Results: 1. The test score scores of children with different levels of blood lead decreased with the increase of blood lead concentration. There was a significant difference in FIQ and VIQ between children with low level of blood lead and high level of blood lead (P <0.05). Analysis of 9 children with FIQ <90 found that 8 children had a blood lead concentration> 40 μg / dl. It is worth discussing whether the level of lead in children can affect children’s intelligence and learning ability.