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目的:了解杭州市余杭地区儿童全血微量元素水平与年龄特点,为儿童合理补充微量元素提供参考依据。方法:将1188名儿童分为婴儿期(0~1岁)、幼儿期(1~3岁)、学龄前期(4~6岁)及学龄期(6~14岁)4个组,采用原子吸收分光光度法测定全血锌、铜、铁、钙和镁的含量。结果:1188例儿童锌、铜、铁、钙和镁五种元素缺乏以锌最普遍,锌缺乏率高达30.01%,铁缺乏率9.3%,钙缺乏率6.8%,铜缺乏率0.8%,镁缺乏率0.6%。在性别上无统计学意义,但在年龄上有统计学意义。结论:余杭地区儿童微量元素总体缺乏情况不是十分严重,但易缺乏锌。幼儿期为生长发育较快时期,易缺乏锌、铁元素。学龄期易缺乏钙元素。所以应注意各种营养的合理搭配及微量元素的补充,使之营养平衡,将有利于儿童的健康成长。
Objective: To understand the level and age characteristics of children’s whole blood trace elements in Yuhang, Hangzhou, and to provide a reference for rational supplementation of trace elements in children. Methods: A total of 1,188 children were divided into four groups: infancy (0-1), early childhood (1-3 years), preschool age (4-6 years) and school age (6-14 years) Spectrophotometric determination of zinc, copper, iron, calcium and magnesium in whole blood. Results: The deficiency of zinc, copper, iron, calcium and magnesium in 1188 children was the most common. The zinc deficiency rate was as high as 30.01%, iron deficiency rate 9.3%, calcium deficiency rate 6.8%, copper deficiency rate 0.8%, magnesium deficiency 0.6% rate. There was no statistical difference in gender, but it was statistically significant in age. Conclusion: The overall lack of trace elements in children in Yuhang area is not very serious, but easy to lack of zinc. Early childhood growth and development period, easy to lack of zinc, iron. School-age easy to lack of calcium. Therefore, we should pay attention to the rational use of various nutrients and trace element supplementation, so that nutritional balance, will be conducive to the healthy growth of children.