【摘要】目的:探讨保定地区金属元素对儿童反复呼吸道感染(RRTI)的影响因素。方法:选择保定市儿童医院门诊符合诊断标准患儿120例及健康体检的儿童120例。进行血铅等金属元素检查。数据分析采用t检验。结果血Ca、血Fe是RRTI的危险因素。结论:儿童RRTI的预防要注意血Ca、血Fe两项相关因素。

    【关键词】儿童 ；RRTI；金属元素；危险因素

    【Abstract】 Objectives: To survey which trace elements are the risk factors of children RRTI in the Baoding city. Methods120 cases of RRTI are studied and compared with the same number of heathy children . Do experiment on trace elements. Do descriptive study ......