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目的:探讨孕妇体重指数变化对新生儿体重的影响。方法:对近2年来我院产检并分娩的447例初产妇的妊娠初期体重指数、妊娠37周后体重指数及其新生儿体重,应用Logistic回归分析评估其与巨大儿的关系。结果:496例产妇中,共有447例用于分析,检出巨大儿56例,检出率为12.5%。与非巨大儿母亲孕期体重指数增量>6者的构成比(90/391,23.0%)相比,巨大儿母亲孕期体重指数增量>6者的构成比(43/56,76.8%)较高(P<0.01)。Logistic回归分析显示,孕期体重指数增量>6是巨大儿的危险因素(RR=11.016,95%CI为5.650～21.477,P<0.01),而年龄和孕次对巨大儿发生率的影响不明显。结论:初产妇孕期体重指数增量>6与巨大儿有关。
Objective: To explore the effect of body mass index of pregnant women on the weight of newborns. Methods: The body mass index (BMI), body mass index (BMI) and body weight of 447 newborns during the first trimester of pregnancy in 447 primipara were analyzed by Logistic regression to evaluate their relationship with macrosomia. Results: Of the 496 mothers, 447 were used for analysis. 56 cases of macrosomia were detected, the detection rate was 12.5%. Compared with the constitutional ratio of body mass index increment (P <0.05) of pregnant women with non-giant mothers> 6 (90 / 391,23.0%), the constitutional ratio High (P <0.01). Logistic regression analysis showed that body mass index increment during pregnancy> 6 was a risk factor for macrosomia (RR = 11.016, 95% CI 5.650 ~ 21.477, P <0.01), while age and gestational age had no significant effect on the incidence of macrosomia . Conclusion: The increase of body mass index of primiparous pregnant women> 6 is related to macrosomia.