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目的探讨孕妇孕前体质指数(BMI)及孕期增重对新生儿出生体重、分娩方式等的影响。方法监测582例单胎产妇孕前的身高、体重和孕期体重增加情况,并调查孕妇健康状况。结果巨大儿发生率、剖宫产发生率均随孕前BMI的升高而升高,但低体重儿发生率与孕前BMI关系的趋势不显著;巨大儿发生率随孕前增重的增加而升高,低体重儿发生率随孕前增重的增加而降低,但剖宫产发生率的趋势未达显著性水平。本研究显示剖宫产发生率比较高。结论孕妇孕前BMI和孕期增重是新生儿出生体重的重要影响因素,提倡定期产前检查及重视母亲孕期体重变化,同时注重孕期营养指导。
Objective To investigate the effects of pre-pregnancy body mass index (BMI) and pregnancy weight gain on birth weight, mode of delivery and so on. Methods 582 singleton maternal pre-pregnancy height, weight and weight gain during pregnancy were monitored and the pregnant women’s health status was investigated. Results The incidence of macrosomia and cesarean section rate increased with the increase of BMI before pregnancy, but there was no significant trend in the relationship between the incidence of pre-term and pre-pregnancy BMI. The incidence of macrosomia increased with the pre-pregnancy weight gain The prevalence of low birth weight children decreased with the increase of pre-pregnancy weight gain, but the trend of cesarean section incidence did not reach the significant level. This study shows that the incidence of cesarean section is relatively high. Conclusions Pregnant women ’s pre - pregnancy BMI and pregnancy weight gain are important influencing factors of newborn birth weight. Advocating regular prenatal examination and paying more attention to the changes of mother’ s body weight during pregnancy, and paying attention to nutrition guidance during pregnancy.