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本文对110例厌食儿及健康儿行发锌、铁、铜含量测定。结果显示厌食儿发锌含量明显低于健康儿，P＜0．01；而发铜、铁含量基本正常，两组间差异无显著性，故提示厌食是缺锌的最早症状之一。同时对两组间Cu／Zn比值进行比较，结果表明厌食组明显高于健康组（P＜0．01）说明体内微量元素变化以锌明显，Cu、Zn含量呈负相关。
110 cases of anorexia and healthy children hair zinc, iron, copper determination. The results showed that anorexia hair zinc content was significantly lower than healthy children, P <0.01; and hair copper, iron content was normal, no significant difference between the two groups, suggesting that anorexia is one of the earliest zinc deficiency symptoms. At the same time, the Cu / Zn ratio was compared between the two groups. The results showed that the anorexia group was significantly higher than the healthy group (P <0.01). The results showed that the trace elements in the anoxia group were significantly affected by zinc and negatively correlated with Cu and Zn.