中文摘要：

目的：了解孕期营养相关行为和状况对孕妇体重的影响以及对新生儿出生时身高体重的影响。方法：通过对住院产妇进行面对面问卷调查，收集孕期营养相关行为状况和母亲体重变化、新生儿出生状况等数据并进行相关性分析。结果：57．5％的产妇孕期增重过多，7．5％的产妇孕期增重不足；巨大儿的发生率为9．6％，低体重儿的发生率为1．8％。新生儿体重与孕前期体重、临产体重、孕期增重呈正相关，饭、肉、蛋和奶的摄入频率与孕期增重和新生儿体重有显著的正相关关系；而营养补充剂的使用与早孕反应严重、孕期胃口差有关，且与孕期增重和新生儿体重呈负相关关系。结论：重庆产妇孕期存在较明显的营养过剩问题，并与巨大儿发生率较高有关，这种情况与主食和肉蛋奶的摄入频率较高有关，而与营养补充剂的使用无关。

英文摘要：

Objective： To understand the effect of gestational nutrition - related behavior and status on body weight of parturient women and body height and body weight of neonate at birth. Methods ： The hospitalized parturient women were investigated by a face - to - face questionnaire ; the gestational nutrition - related behavior and status, the change of body weight of parturient women, birth status of neonates were collected, and then a correlation analysis was performed. Results： Among the parturient women investigated, 57.5% of them were found with excessive increase of gestational weight gain, 7.5% of them were found with insufficient gestational weight gain; the incidence rates of macrosomia and low birth weight infants were 9.6% and 1.8% , respectively. There was a positive correlation between neonatal weight and pregestational weight, body weight in labor, gestational body weight gain; there was a significant positive correlation between intake frequencies of meal, meat, egg, milk and gestational weight gain, neonatal weight ; the usage of nutritious supplementaries was correlated with severe morning sickness and poor appetite during gestational period, which was negatively correlated with gestation weight gain and neonatal weight. Conclusion： Obvious overnutrition exists in parturient women during gestational period in Chongqing city, which is correlated with high incidence rate of macrosomia, this situation is correlated with intake frequencies of meal, meat, egg, and milk, but it is not related to usage of nutritious supplementaries.