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目的探讨高砷暴露对儿童智力发育的影响。方法选取砷中毒病区和对照区,测其8~12岁儿童的智力水平,对2组测定结果进行分析比较。结果砷中毒病区儿童智力水平明显低于对照组(P<0.01),平均智商落后于对照组10个智商(IQ),其智商分布与对照组比较,差异有统计学意义(P<0.05),智商低下的发生率达到4.44%。儿童尿砷值与智商值之间呈明显的负相关关系(r=-0.210,u=2.89,P<0.01)。结论长期砷暴露可影响儿童的智力发育,积极防治砷中毒对保障儿童的身心健康具有重要意义。
Objective To explore the impact of high arsenic exposure on children’s mental development. Methods Arsenism poisoning area and control area were selected, the intelligence level of children aged 8 ~ 12 was measured, and the results of two groups were analyzed and compared. Results The intelligence level of children with arsenism was significantly lower than that of the control group (P <0.01), and the average IQ was 10 IQs lower than that of the control group. The IQ distribution was significantly different from that of the control group (P <0.05) , The prevalence of low IQ reached 4.44%. There was a significant negative correlation between urinary arsenic values and IQ in children (r = -0.210, u = 2.89, P <0.01). Conclusion Long-term arsenic exposure can affect children’s mental development, and prevention and treatment of arsenic poisoning is of great significance to children’s physical and mental health.