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目的了解洛阳市学龄前儿童全血微量元素含量。方法采用原子吸收法检测750例儿童体内锌(Zn)、钙(Ca)、铁(Fe)、铜(Cu)、镁(Mg)和铅(Pb)含量。分别按照年龄和性别分组,应用SPSS 19.0软件对各组间微量元素含量和检出异常率进行统计和分析,同时分析各种微量元素含量之间的相关性。结果 1.不同年龄组间比较,Zn、Ca、Fe和Cu含量差异有统计学意义(P<0.01或0.05),Mg和Pb含量差异无统计学意义(P>0.05),Zn、Ca和Fe检出异常率差异有统计学意义(P<0.05),Cu、Mg和Pb检出异常率差异无统计学意义(P>0.05);2.不同性别间比较,各种元素含量和检出异常率差异均无统计学意义(P>0.05);3.相关分析显示,Zn、Ca、Fe、Cu和Mg含量呈两两相关性(P<0.01或0.05),Pb分别与Zn、Ca和Fe含量呈负相关(P<0.01或0.05)。结论洛阳市学龄前儿童Zn、Ca和Fe缺乏较严重,铅含量较高,应引起人们重视。
Objective To understand the content of trace elements in whole blood of preschool children in Luoyang. Methods The contents of Zn, Ca, Fe, Cu, Mg and Pb in 750 children were detected by atomic absorption spectrometry. The groups were grouped by age and gender, and SPSS 19.0 software was used to analyze and analyze the content of trace elements in each group and the rate of abnormalities detected. Meanwhile, the correlations among various trace element contents were also analyzed. Results 1. There were significant differences in Zn, Ca, Fe and Cu contents between different age groups (P <0.01 or 0.05), while there was no significant difference between Mg and Pb contents (P> 0.05) (P <0.05). There was no significant difference in the detection rate of Cu, Mg and Pb between the two groups (P> 0.05). 2. The contents of all kinds of elements and abnormalities were detected in different sexes (P> 0.05). The correlation analysis showed that the content of Zn, Ca, Fe, Cu and Mg showed two-way correlation (P <0.01 or 0.05) Content was negatively correlated (P <0.01 or 0.05). Conclusions The deficiency of Zn, Ca and Fe in preschool children in Luoyang City is more serious and lead content is higher, which should be paid more attention.