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目的:探讨孕早、中、晚期孕妇体重的增加与新生儿出生体重的关系。方法:观察记录440例孕妇年龄、孕次、产次及孕前、孕12周、孕28周、分娩前的体重,以及新生儿出生体重、性别及胎龄。采用Pearson’s相关分析了解不同孕期孕妇体重增加与新生儿出生体重的相关性,采用Logistic回归法分析孕妇特征与巨大儿发生的关系。结果:早孕期孕妇体重增长速度最慢,为0.01 g.周-1;中孕期孕妇体重增长速度最快,达0.51 g.周-1。各孕期孕妇体重增长速度比较差异有统计学意义(P<0.05)。巨大儿的发生率随着孕周增加而增加。孕妇孕前体重、总体重增加值以及中孕期体重增加的速度与新生儿出生体重显著性相关。结论:中孕期间孕妇体重增加的速度比早孕期和晚孕期快,对新生儿出生体重影响最大。
Objective: To investigate the relationship between the increase of pregnant women’s weight in early, middle and late pregnant women and the birth weight of newborns. Methods: 440 cases of pregnant women were observed, including the age, pregnancy time, delivery time and pre-pregnancy, 12 weeks pregnant, 28 weeks pregnant, body weight before delivery, birth weight, sex and gestational age. Pearson’s correlation analysis was used to understand the relationship between weight gain and newborn birth weight in different pregnant women. Logistic regression analysis was used to analyze the relationship between pregnant women’s characteristics and the occurrence of macrosomia. Results: The weight gain of pregnant women in the first trimester was the slowest, 0.01 g. Week -1; the fastest growth of pregnant women in the second trimester was 0.51 g. Week -1. The weight gain rate of pregnant women in each pregnancy was significantly different (P <0.05). The incidence of giant children increases with gestational weeks. Pregnant women before pregnancy weight, total weight gain and weight gain during pregnancy and neonatal birth weight was significantly correlated. Conclusion: The weight gain of pregnant women during the first trimester is faster than that of the first trimester and the second trimester, and has the greatest impact on the birth weight of newborns.