青春前期儿童血铅含量及铅对行为发育的相关性

Correlation of level of blood lead with behavioral development of adolescents

目的了解济宁市青春前期儿童血铅含量,探讨铅对青少年儿童行为发育的影响。方法采用随机化的原则获得143名11～14岁青少年儿童,利用青少年自评量表进行行为调查,应用微分电位溶出法测定全血中铅的含量。结果济宁市青春前期儿童血铅平均水平为58.30μg/L,男生血铅水平、铅中毒人数低于女生,行为异常的儿童血铅水平及铅中毒率高于行为正常组。血铅含量与注意缺陷、违纪行为、攻击行为呈现正相关性(r依次为0.187、0.193、0.213),且有统计学意义。结论铅是影响儿童行为发育的主要因素,针对青春前期儿童应减少其对环境中铅的接触。

Objective To understand the level o blood lead adolescents in Jining City and explore the effect of lead on children behavior development. Methods There 143 children aged 11-14 years were randomly selected,and status of behavior development of the adolescents were surveyed. Results The average level of blood lead in aodelscents in Jining was 58.30μg/L,being higher in girls than in boys,and so was the numbers of lead poisoning. The blood lead level and the lead poisoning rate of adolescents with abnormal behavior were higher than that of children with normal behavior. Conclusion Lead level is a main factor affecting the behavior development of adolescents and preventive measures be taekn to protect the health of the children.