Jiang Ping, Guan Meiyun, Li Li, Shao Ziyu, Wang Yan, Hu Chuanlai
Wei Sheng Yan Jiu. 2014 May;43(3):415-8.
To explore the relationship between pre-pregnancy BMI, antepartum weight gain and postpartum weight retention.
793 postpartum women from certain district of Hefei city were recruited as the observational cohort at 3rd month after delivery. We obtained antepartum information from pregnancy care management system and conducted questionnaire and measurement at 3, 6, 9 and 12 months postpartum. The observation items included baseline data, antepartum weight, weight gain during pregnancy, weight of different timing during one year after delivery.
The proportion of pregnant women whose BMI back to normal during 3, 6, 9 and 12 months were respectively 61.92%, 68.73%, 78.18% and 84.24%. Pre-pregnancy BMI of women's weight gain and weight retention during 3, 6, 9 and 12 months differs. After comparing the differences between higher pre-pregnancy BMI group, medium pre-pregnancy BMI group and lower pre-pregnancy BMI group, the differences were statistically significant. There were independent effects between weight gain during pregnancy, time and postpartum weight recovery, but no interactions were shown between them.
Pre-pregnancy BMI and weight gain during pregnancy were important factors for postpartum weight retention. Using pre-pregnancy BMI as guidance to build reasonable weight gain during pregnancy might reduce the occurrence of postpartum weight retention and promote postpartum recovery.
探讨孕前体重指数（BMI）、孕期体重增加与产后体重滞留之间的关系。
选取合肥市某区793名产后妇女作为观察队列，于产后3个月进行研究。通过孕期保健管理系统获取孕前信息，并在产后3、6、9和12个月进行问卷调查和测量。观察项目包括基线数据、孕前体重、孕期体重增加、产后一年内不同时间点的体重。
产后3、6、9和12个月BMI恢复正常的孕妇比例分别为61.92%、68.73%、78.18%和84.24%。孕前BMI不同的女性在产后3、6、9和12个月的体重增加和体重滞留情况存在差异。比较孕前BMI较高组、孕前BMI中等组和孕前BMI较低组之间的差异，差异具有统计学意义。孕期体重增加、时间与产后体重恢复之间存在独立效应，但未显示它们之间存在交互作用。
孕前BMI和孕期体重增加是产后体重滞留的重要因素。以孕前BMI为指导，孕期合理增加体重可能会减少产后体重滞留的发生，促进产后恢复。
