孕期增重以及产后软饮料的摄入对产后体重滞留的影响

目的 研究孕期增重以及产后膳食对产后体重滞留的影响 方法 采用队列研究的方法，以在北京北方医院进行产后复查的产妇为研究对象，分别在产后1个月、6个月进行追踪随访，调查研究对象的一般信息、孕前、分娩前、产后1个月、6个月的体重；用半定量的食物频数法，收集研究对象的膳食摄入信息。利用多元线性回归模型，分析孕期增重以及膳食摄入量与产后体重滞留的关系。结果 孕期增重（β = 0.73, 95%CI: 0.52～0.71，β = 0.67, 95%CI: 0.51～0.77）、软饮料摄入量（β = 0.14, 95%CI: 0.14～1.34，β = 0.15, 95%CI: 0.05～1.53）与产后1、6个月体重滞留呈正相关关系，关联具有统计学意义；按照喂养方式分层后，孕期增重、软饮料摄入与产后1个月、6个月喂养方式之间不存在交互作用。结论 孕期增重与产后软饮料摄入与产后体重滞留有关，与软饮料摄入量相比，孕期增重是产后体重滞留更重要的预测因子。

The effects of gestational weight gain and postpartum soft drinks intake on postpartum weight retention

Objective To study the effects of gestational weight gain(GWG) and postpartum dietary intake on postpartum weight retention (PWR). Methods This is a cohort study. Women who participated in regular physical examination postpartum were recruited. Subjects were followed up at 1 month and 6 months postpartum respectively. A structured questionnaire was used for data on demographic characteristics, the weight of pre-pregnancy, weight before deliver, and weight at 1 and 6 months postpartum. At 6 months postpartum, a semi-quantitative Food Frequency Questionnaire(FFQ) was utilized to obtain data on dietary intake of subjects. Multivariate regression analysis was used for association between variables and PWR. Results GWG(β=0.73, 95%CI: 0.52-0.71, β=0.67, 95%CI: 0.51-0.77) and soft drinks intake(β=0.14, 95%CI: 0.14-1.34; β=0.15, 95%CI: 0.05-1.53) showed a positive relationship with PWR at 1 and 6 month postpartum; After stratified analysis, there was no interaction effect between GWG, soft drink intakes and the modes of feeding. Conclusion GWG and postpartum soft drinks intake show positive correlation with PWR. GWG is a more important predictor of postpartum weight retention.