孕期营养素摄入量对胎儿宫内发育的影响

目的 研究不同孕期营养素摄入量对宫内胎儿发育的影响.方法 239例妊娠妇女分为10～20周、21～30周及31周以上三组,根据营养素摄人量,用常规方法确定不同孕期胎儿宫内发育迟缓.比较不同孕期及不同营养素供给量(RDA)间胎儿宫内发育迟缓的发生率.结果 第一、二、三组:与<90%RDA及>110%RDA者比较,90%～110%RDA者的胎儿宫内发育迟缓发生率较低,但差异无统计学意义(P>0.05);第二组:与<90%RDA及>110%RDA者比较,90%～110%RDA者的胎儿宫内发育迟缓发生率较低,差异有统计学意义(P<0.05);第三组:与<90%RDA及>110%RDA者比较,90%～110%RDA者的胎儿宫内发育迟缓发生率较低,差异亦无统计学意义(P>0.05).结论 合理的营养素摄入量对于降低胎儿宫内发育迟缓的发生率具有重要意义.

Effects of nutrient intake in the gestation on fetus intrauterine growth retardance

Objective To study the effect of nutrient intake in different periods of gestation on fetus in-trauterine growth. Methods 239 cases of pregnant women were divided into three groups:(1)10～2 weeks; (2)21～30 weeks; (3)over 31 weeks. Nutrient intake was calculated by computer nutrition system. Fetus intrauterine growth retardance in different periods of gestation was estimated by routine methods. The incidence rate of fetus in-trauterine growth retardance between different periods of gestation and different nutrient intake was compared. Re-suits Group 1, group 2 and group 3 : comparison to cases with < 90 % RDA or > 110 % RDA, the incidence rate of fetus intrauterine growth retardance was higher than that in pregnant women with 110 % - 90 % RDA(P < 0.05).Conclusion Optimal nutrient intake was important to reduce the incidence rate of fetus intrauterine growth retar-dance.