目的 分析婴儿唾液成分与饮食行为之间的相关关系,为临床指导婴儿喂养提供客观指标.方法 649例婴儿根据居住地的不同分为城市组和农村组;按月龄段的不同分为1～3月、4～6月、7～9月和10～12月4组;按性别不同分为男婴组和女婴组.对带养人进行面对面婴儿饮食行为的问卷调查,调查内容包括固体食物引入;对每名婴儿测量体重和身长,评价其生长发育状况;收集该婴儿的口腔全唾液,用全自动生化分析仪测定唾液中淀粉酶,K+,Na+,Cl-,葡萄糖,总蛋白,总胆固醇,三酰甘油的含量.结果 不同地区、不同月龄、不同进食能力的婴儿,其唾液成分存在着差异(P＜0.01);婴儿唾液成分与饮食行为、体重和身长之间有着一定的相关关系.结论 唾液成分分析对于指导婴儿饮食行为发育具有一定的现实意义.%Objective To explore relationship between saliva constituents and dietary (feeding) behaviors of infants aged under 1 year so as to provide objective basis for infant-feeding instruction in clinic. Methods 649 infants were divided into two groups (city group and rural group) according to their living areas, into four age groups (under 3-month-old group, between 4-6-month-old group, between 7-9-month-old group and between 10-12-month-old group) according to their month ages and into two gender groups (boy group and girl group).Parents and caregivers were investigated by filling in questionnaires about the infants' dietary behaviors for solid food introduction and so on. The body weight and height of the infants were measured to evaluate their growth condition. The subjects' saliva was taken. The contents of K+, Na+, Cl-, glucose, total proteins, total cholesterols and triglyceride were determined by Automatic Biochemical Analysor. Results There were significant differences in saliva constituents among infants in different living areas, ages and abilities to take food (all P ＜ 0.01 ). There were certain relationships between saliva constituents and dietary behaviors, body weight and height of the infants. Conclusion It is of practical significance to detect saliva constituents for instructing dietary behavior development of the infants.
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