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研究了在佝偻病干预试验中婴几体内钙、磷、镁、铁、锌和铜含量的变化。结果表明，干预后婴儿发钙（ｐ＜０．０５）和发铁（ｐ＜０．０１）含量低于干预前；同期干预组与对照组间小儿血钙、血磷等差异无显著性（Ｐ＞０．０５），血镁仅每日投药组低于对照组（Ｐ＜０．０１）；发病儿与未发病儿间发钙、发磷等差异无显著性（Ｐ＞０．０５）。发病儿发镁高于未发病儿（Ｐ＜０．０１）。提示亚热带地区为了提高佝俊病的预防效果，除了投给维生素Ｄ制剂外，还应切断其它干扰钙磷代谢的环节，如改变饮食喂养习惯等。
The changes of calcium, phosphorus, magnesium, iron, zinc and copper contents in infant rickets intervention trials were studied. The results showed that the content of calcium (p <0.05) and iron (p <0.01) infants in infants were lower than those before intervention, while there was no significant difference between the intervention group and the control group (P> 0.05). The blood magnesium level was lower in the daily administration group than in the control group (P <0.01). There was no significant difference between the onset and non-onset children in the incidence of calcium and phosphorus (P> 0.05) . The incidence of children with magnesium was higher than those without children (P <0.01). Prompted subtropical areas in order to improve the prevention of Jun Jun disease, in addition to vote for vitamin D preparations, it should cut off other links that interfere with calcium and phosphorus metabolism, such as changing the diet feeding habits.