砷中毒病区儿童智力水平调查

Investigation on children's intelligence level in arsenic-poisoned areas

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 influence of arsenic exposure on children＇s intelligence . Methods Two groups were sampled in arsenic-poisoned areas and non - diseased areas. The level of 8 - 12years chidren＇ s intelligence were analyzed. Results The children＇ s intelligence level of the arsenic-poisoned area was lower significantly than of the control group （P 〈 0.01 ）. The average level of children＇s intelligence was lower 10 I Q than that of the control group. The children＇s intelligence distrbution of the arsenic-poisoned area was different significantly（ P 〈 0.05）. The lower rate of chidren＇s inrelligence distribution of the arsenic-poisoned area was different significantly（ P 〈 0.05）. The lower rate of children＇ s intelligence of the arsenic-poisoned area was 4.44 %. The level of children＇s intelligence was negatively correlation with the urine arsenic concentratin. Conclusion Children＇ s intelligence development can be affected by long - dated high arsenic exposure. It＇ s important for promoting children＇s health to make effective prevention for arsenism.