深圳市852例婴儿血锌检测分析

Analysis on serum zinc concentration among 852 infants in Shenzhen

目的了解婴儿血锌水平,为预防锌缺乏提供科学依据。方法由专人对儿保门诊852例6~12个月婴儿的家长进行问卷调查,了解喂养情况,调查资料用SAS8.0进行统计分析。结果 852例婴儿中,母乳喂养占46%,混合喂养占35.56%,人工喂养占18.43%,母乳喂养婴儿的血锌值明显高于另外两组,3组的血锌值比较差异有统计学意义（P〈0.01）。血锌值越低,食欲不振、反复呼吸道感染等临床症状越明显,差异有统计学意义（P〈0.01）。缺锌组婴儿家长在母乳喂养重要性、辅食添加时间、动物性食物添加等方面的认知率明显低于正常组,差异有统计学意义。结论加强母乳喂养及辅食添加指导,能积极防治锌缺乏症,减少锌缺乏症的发生。

Objective To investigate the serum zinc concentration in infants, and in order to provide evidences for the prevention of zinc deficiency. Methods Questionnaire of feeding methods were conducted by specialists from children health care outpatient, and parents of 852 infants （6 to 12 months） were surveyed. The data was analyzed by SAS8.0. Results Of the 852 cases, 46%, 35. 56% and 18.43% of their children were breast feeding, mixed feeding and artificial feeding respectively. The serum zinc concentration in the breastfeeding group was higher than the other two groups, and the difference was statistically significant （ P 〈 0.01 ）. The low serum zinc concentration was correlated with losing of appetite and recurrent respiratory tract infection （ P 〈 0.01 ）. Furthermore, parents＇ awareness level of the importance of breasffeeding, the time of feed supplement and the animal-based food supplement in zinc deficiency group was lower than that in normal group. Conclusions It is important to strengthen the guidance of breast feeding and feed supplement, and this can prevent and reduce the occurrence of zinc deficiency.