3621例儿童血铅水平调查

目的调查2009年深圳市妇幼保健院门诊儿童血铅水平和铅中毒状况。方法采用钨舟原子吸收光谱法测定3621例0～12岁儿童血铅水平,对各年龄组儿童血铅值应用SPSS15.0软件进行分析。结果 3621例0～12岁儿童血铅水平为43.58μg/L,按年龄分为4组,组间差异有统计学意义,男、女童血铅水平分别为45.61、41.23μg/L,幼儿前期和小学阶段儿童血铅水平存在性别差异。血铅水平大于或等于100μg/L者130例,铅中毒率为3.59%,铅中毒率最低为婴儿组(2.76%),最高是小学阶段(7.05%);男童铅中毒51例,铅中毒率为4.16%,女童铅中毒49例,铅中毒为2.76%,中毒的比例在男女童间差异具有统计学意义(P0.05)。结论儿童血铅水平及中毒率随年龄增长而增加,男童血铅水平及中毒率均高于女童。

Investigation on blood lead in 3 621 children

Objective To investigate blood lead levels（BLL）and lead poisoning of outpatients in 2009.Methods The blood lead levels among 0~12 years old children were measured by automic absorption spectrometry （AAS）,and the data were analyzed by SPSS 15.0 software.Results The mean BLL in 3 621 children aged 0-12years old was 43.58 μg/L.There were four groups according to age.BLL had remarkable differdnces among groups.Boys and girls＇s BLL was 45.61 μg/L and 41.23 μg/L respectively,BLL was remarkably different between pre-kingdergarton and primary school groups.130 children had a maximal blood lead levels≥100 μg/L,the lead poisioning rate was 3.59%,the lowest lead poisioning rate was infant groups （2.76%）,the highest was the primary school（7.05%）,81 were boys with lead poisioning rate of （4.16%） and 49 were girls with lead poisioning rate of 2.76% ,There were statistically significant positive bias（P〈0.05） for the blood lead poisioning between boys and girls.Conclusion Children BLL and the lead poisoning rate increase with their age.Boys BLL and the lead poisoning rate was higher than those of girls.