孕前体重指数、孕期增重与新生儿出生体重及婴儿肥胖相关性研究

Study on the correlation between pregestational BMI&weight gain during pregnancy and neonatal birth weight&infant obesity

目的:探讨孕前体重指数、孕期体重增加与新生儿出生体重及婴儿肥胖相关性研究。方法:按孕前体重指数将285例单胎初产妊娠孕妇分为低体重组68例、正常体重组164例及肥胖组53例,观察记录三组孕妇孕期体重增加、新生儿出生体重及婴儿肥胖情况,并分析其相关性。结果:不同体重组新生儿体重比较差异有统计学意义(P<0.05);肥胖组肥胖婴儿较多,且孕妇体重与肥胖儿月份呈相关性,其中不同体重组婴儿出生后1个月、3个月肥胖比例与孕妇体重呈正相关(P<0.05),且孕妇体重指数越高,出现肥胖儿越早。结论:孕前体重与孕期增重无相关性,但孕期增重与新生儿的出生体重有密切相关性,故应在孕期严密监测孕妇体重增加情况,合理控制饮食,从而降低肥胖儿出生率。

Objective：To study the relationship between pregestational BMI ＆ weight gain during pregnancy and neonatal birth weight ＆ newborn obesity. Methods ：285 pregnant women（primiparity） with single pregnancy were divided into low body weight group（n = 68）, nor- mal weight group（ n = 164） and obese group（ n --53 ） according to pregestational body mass index（BMI）. The status of weight gain during pregnancy, birth weight of newborn and infant obesity was observed and recorded, and the correlation was analyzed. Results：The difference in the comparison of birth weight of newborn was statistically significant in these groups （ P 〈 0.05 ） ; the obese infants were more many in the obese group. The maternal weight was correlated with the months of obese infants （ P 〈 0.05 ）. Conclusion ： The pregestational weight has no correlation with weight gain during pregnancy, but the weight gain during pregnancy is closely correlated with neonatal birth weight. Therefore the weight gain during pregnancy should closedly be monitored and diet be reasonably controlled, so the birth rate of obese infants will be reduced.