母乳喂养婴儿体格发育及铁营养状况纵向观察结果分析

Analysis of longtitudinal observation results about physical growth and iron status of breast feeding infants.

【目的】研究母乳及半固体食物引入时间对婴儿体格及铁营养状况的影响,为科学进行母乳喂养提供依据。【方法】采取前瞻性队列研究,实验组为母乳喂养婴儿,对照组为人工喂养婴儿,定期追踪随访两组婴儿喂养、体格及贫血等情况,进行分析比较。【结果】母乳喂养组6个月龄时身高、体重优于人工喂养组,差异有统计学意义(P<0.05);4个月龄、6个月龄时贫血检出率分别为0.91%和17.76%,与人工喂养组比较,差异无统计学意义(P>0.05)。母乳喂养婴儿满4个月开始添加与满6个月开始添加半固体食物,对婴儿身高、体重、Hb、MCV、MCH、SF无影响,差异均无统计学意义(P>0.05)【结论】满6个月是半固体食物添加的适宜时间,母乳喂养未增加婴儿罹患缺铁性贫血的风险,孕后期充足的铁营养摄入是降低贫血风险的关键。

【Objective】 To research the influence of breast feeding and the introduced time of semisolid food on infants＇ physical growth and iron status,and provide the evidence for scientific breastfeeding. 【Methods】 A prospective cohort study on the comparison of breast feeding infants in experimental group and artificial feeding in control group was applied.Regular tracing survey was performed for collecting and analyzing the data of feeding,physical development and iron status. 【Results】 Infants＇weight and height of breast feeding group in 6 months were superior to that of artificial feeding group,showing significant difference（P0.05）.There was no significant difference in detection rate of anemia in 4 and 6 months infants,which in sequence was 0.91% and 17.76%（P0.05）.There was no effect on the infants height,weight,level of hemoglobin,MCV,MCH and SF either adding semisolid food in 4 months or 6 months infants（P0.05）. 【Conclusions】 It is a suitable time for introduceding semisolid food in 6 months.Breastfeeding cannot increase the risk of iron deficiency anemia.It is a key to fortified iron intake in late pregnancy for reduce the risk of anemia.