3320例儿童微量元素检测结果分析

Analysis of Trace Elements in the Whole Blood from 3320 Children

目的:了解本院就诊儿童血微量元素水平,并分析其影响因素。方法:取儿童末梢血,采用原子吸收分光光度法检测,用统计软件进行分析。结果:男女儿童之间铅含量有差异,但铜、锌、钙、镁、铁、镉含量无差别。不同年龄组儿童之间微量元素含量有显著性差异,其中儿童锌、铁含量随着年龄的增长呈上升趋势,钙呈下降趋势。除镁外,不同年龄组儿童之间微量元素异常率有显著性差异,其中儿童钙、铁缺乏率随着年龄的增长分别呈上升、下降趋势,缺锌率呈波动状态,而儿童铜、镁缺乏率较低;儿童铅超标率在18.88%～29.37%之间,在4～5岁儿童时达到峰值;镉超标率在0.60～4.37%之间。结论:本院就诊儿童缺锌、钙、铁较普遍,但儿童铅中毒平均发生率低于全国平均水平。通过微量元素的检测,并有针对性地进行补充和排毒,将大大有利于儿童的健康成长。

Objective： To investigate the status of the whole blood trace elements of children from pediatrics care clinic in Xiangfan Central Hospital and its effect factors. Methods： Children＇s peripheral bloods were collected and the whole blood trace elements were measured by atomic absorption trophotometry. The results were analyzed with spss 12.0 software. Results： Levels of lead （Pb） had significant difference between boys and girls, but copper （Cu）, zinc （Zn）, calcium （Ca）, magnesium （Mg）, ferrum （Fe）, or Cadmium（Cd） had no significant differences. Determination of trace elements confirmed that the levels had significant differences among the different age. The concentration of Zn or Fe went up with the age and the Ca had a reverse tendency. The lack rate ofCu, Zn, Ca or Fe and the poisoning rate of Pb or Cd had significant difference among the different age and the insufficient rate of Ca went up with the age and the Fe had a descendent tendency, but the positive rate of Zn fluctuated from 18.16% to 33.49%. The lack rate of Cu or Mg was no more than 5.02%. The poisoning rate of Pb differed between 18.88% and 29.37%, and reached the peak at the age of 4 or 5. The positive rate of Cd was no more than 4.37%. Conclusion： The deficiency of Zn, Ca or Fe in children from pediatrics care clinic was a very commonly existed phenomenon, but the poisoning rate of Pb in the children was lower than national average level. Through determination of trace elements in the whole blood, trace elements insufficient can be added to or poisonous elements were expelled from bodies accordingly, which would be beneficial to children＇s health greatly.