幼儿头发中微量元素含量与身高、体重关系研究

The Studies on Relations between Trace Elements in Hair and Body Height and Weight

普查了 4 449名 1～ 6岁儿童头发中锌、铁、铜、钙、锰、铅含量 ,用分层聚类分析法对其身高、体重与各元素进行相关分析。幼儿身高与头发中锌含量呈正相关关系 (相关系数为0 1 4 4 ) ,与头发中铅含量呈负相关关系 (相关系数为 -0 1 86)。体重与头发中锌含量呈显著的正相关关系 (相关系数为 0 1 1 3 ) ,与头发中铅含量呈负相关关系 (相关系数为 -0 1 1 4 )。说明锌有利于身体发育 。

The content of 6 kinds of inorganic elements(Zn, Fe, Cu, Ca, Mn and Pb)in hair of 4449 teenagers,1 to 7 years old, was studied by hierarchical cluster method. The results show that(1)The content of Zn in hair of children is positive relation(its correlation coefficient is 0 144)with body height of children,and the content of Pb in hair of children is negative relation(its correlation coefficient is -0 186 )with body height of children.(2) The content of Zn in hair of children is positive relation(its correlation coefficient is 0 113)with body weight of children,and the content of Pb in hair of children is negative relation(its correlation coefficient is -0 114) with body weight of children. The content of Zn in body of children is beneficial to growth of body,and the high content of Pb in body of children is unfavourable to growth of body.