上海市奉贤区儿童钙和微量元素检测结果分析

Analysis on the results of trace elements and calcum determination in whole blood of children in fengxian district,shanghai

目的：了解上海市奉贤区儿童钙、铜、锌、铁、镁5种元素的缺乏状况及变化趋势，为防治儿童钙和微量元素的缺乏和指导合理膳食提供参考依据。方法选取2219例于本院儿科门诊就诊的儿童，使用原子吸收光谱法测定全血铜、锌、钙、镁、铁5种元素的水平。将儿童分为5个年龄组：婴儿组（1～＜12个月），幼儿组（1～＜3岁），学龄前组（3～＜7岁），学龄期组（7～＜12岁），青春发育期组（12～18岁）。分析不同年龄段和不同性别儿童钙和微量元素的水平及变化趋势。结果5种元素中锌、铁和钙的缺乏在不同年龄段都较为常见，钙、铁和锌水平的异常率分别为21．94％、22．08％和26．81％。男、女性别间的差异无统计学意义（P ＞0．05），各组间比较差异有统计学意义（P ＜0．05）。2011～2013年锌的平均水平在不同组儿童中有不同程度的上升趋势，其他元素没有明显的变化趋势。结论上海市奉贤区儿童锌、铁和钙存在不同程度的缺乏，应定期检测钙和微量元素并及早制定补充措施。

Objective To investigate the distribution and variation trend of whole-blood Ca,Cu,Zn,Fe and Mg concentrations of children in fengxian district,Shanghai,and provide a reference for prevention of elements deficiency in children.Methods 2 219 children in outpatient department of pediatrics were enrolled in the study,who reccieved the tests for five kinds of elements（Ca, Mg,Fe,Cu,Zn）in whole blood by using atomic absorption spectrometer.The children were divided into 5 age groups：infancy group （1-〈12 months old）,toddler age group（1 -〈3 years old）,preschool age group（3 -〈7 years old）,school age group（7 -〈12 years old）and adolescence group（12-18 years old）.The distributions and variation trend of the 5 kinds of elements were analyzed among different age and gender groups.Results The deficiencies of Ca,Fe and Zn were common in all the age groups,the total defi-ciency rates of Ca,Fe and Zn were 19.51%,22.08% and 25.82% respectively.there was no significant difference between boys and girls（P 〉0.05）.Differences among different age groups were statistically significant（P 〈0.05）.The Average concentrations of Zn displayed increasing tendency of different degrees in different groups of children,other elements displayed no obvious variation trend.Conclusion Children′s Zn,Fe and Ca deficiencies in Fengxian District,Shanghai are in different degrees,regular determina-tion of calcium and trace elements should be performed and take supplementary measures as soon as possible.