Microelement Influence of Physical Development of Preschool Children
|Keywords||Preschool children Trace elements Growth Health|
Iron, zinc, calcium, copper, magnesium five-element is the bases toguarantee the normal growth and development of the preschool children. Theaim of this article is to comprehensively understand the current state of thefive elements in the pre-school children’s blood and their influence on thepre-school children’s growth in Tanggu District, Tianjin. The five elementsnormal reference range should also be established for the children aged 3-6 inthis region. It would provide a basis for guiding parents and child healthworkers to prevent the lack of five elements for pre-school children.Most of the test for the iron, zinc, calcium, copper, magnesium fiveelements only limited the simple processing to the results, and the groupcontrast to the age, region, etc nowadays. The article detailed statisticalanalysis the lack of five elements for the preschool children in gender, age,region and disorders with obesity, anemia, malnutrition, dental caries, pooreyesight, as well as the relationships with the disorders, so that the normalreference range of the five elements is set out in the region.We selected 3,681 school children of nine kindergartens of this region inthe cluster sampling method in 2010, collected fasting blood in peripheral ringfinger, determinate the level of the five elements with atomic absorptionspectrometry, detected the hemoglobin concentration by the hemoglobinanalyzer, and did the physical examination to the children’s height, weight,facial features, teeth, chest, head circumference, to evaluate them withevaluation of reference standards of physical development. The normalreference range was obtained according to the calculation method of thenormal reference range in "Health Statistics". The relationships with a varietyof disorders could be got by comparing the five elements of normal preschoolchildren and with obesity, anemia, malnutrition, dental caries, and pooreyesight.It shows that the situation of lack of five elements for preschool childrenTanggu District, Tianjin is better than the corresponding groups in the citiesof equal rank nationwide. Growth and developments are also in good condition.But the government and health workers should still step up publicity. Meanwhile parents should also be reasonably adjust the dietary structure anddo well the early prevention, and choose the most appropriate time toappropriately add the microelements.