目的 分析补充儿童营养素对6~24个月婴幼儿血红蛋白含量的影响及铁缺乏的干预效果,为营养性贫血防治提供科学依据。方法 在广西缺铁性贫血高发区(横县、灵山县和宾阳县),采用随机抽样方法在3个县8个乡抽取6~24个月婴幼儿(排除地中海贫血患者)作为营养干预试验研究对象,分4组进行比较研究,分别为A组(正常喂养+营养素补充+健康教育)、B组(正常喂养+营养补充剂)、C组(正常喂养+健康教育)、D组(正常喂养)。干预前、干预4个月、干预8个月后检测婴幼儿末梢血的血红蛋白,对不同组干预前后进行比较分析。结果 各月龄段婴幼儿干预4个月和8个月后,血红蛋白均高于干预前(P<0.05);12~24月龄婴幼儿干预后血红蛋白(Hb)高于对照组(t=2.78,P=0.006);A、B组血红蛋白增值均高于C组和D组(LSD法,P<0.05)。结论 补充儿童营养素可以提高婴幼儿血红蛋白含量,有利于改善婴幼儿贫血状况。

Objective To analyse the intervention effect of supplementation on children′s nutrition hemoglobin (Hb) and iron deficiency in infants of 6~24 months,in order to provide a scientific basis for the prevention of nutritional anemia. Methods The survey was conducted according to random sampling in three counties of Heng,Lingshan and Binyang Courty where with a high incidence of iron deficiency anemia in Guangxi.Questionnaire survey and measuring Hb value were given to four groups aged 12~24 months infants excluding infants with thalassemia before,4 months later and 8 months after the intervention.All A,B,C,D groups′ intervention program were given normal feed,add nutrition combine health education,nutrition,health education and none intervention to A,B,C groups,respectively. Results Each month old infants′ Hb after 4 months later and 8 months later were higher than those before intervention (P<0.05).8 months after the intervention,the Hb of the intervention group was higher than that of the control group showed in 12~24 month infants (t=2.78,P=0.006).Both A/B groups were higher than C and D groups (analysis with LSD method,P<0.05). Conclusion Supplementary nutrient for children can improve hemoglobin value,and it is conducive to improve the status of anemia in infants.