Abstract：Objective To evaluate gestational weight gain(GWG) and its relationship with the birth weight of offspring according to pre-pregnancy body mass index(BMI).Methods A retrospective study sample enrolled 4 927 singleton pregnancy women with complete records, who had full record of pre-pregnancy weight and GWG as to delivered at hospital between July and December 2013. Conditions of mothers and babies were recorded, including maternal age, height, prepregnant weight, pregnant weight, gestational weeks on delivery, delivery mode and newborn birth weight.Results Mean gestation weight gain were (16.5±4.3) kg, the average birth weight of the babies was 3402.3±381.8 g. Cesarean delivery rate was 34.7%. Women were grouped by pre-pregnancy body mass index (BMI) and were then classified as having less than, within, or greater than recommended rates of gain. The rate of each group were 32.9%,53.3% and 13.8%,respectively. There are3933 appropriate birthweight babies in the three groups. For their mothers in the underweight, normal weight, overweight and obese group, the recommended range of GWG were 14.0-19.0 kg, 14.0-19.0 kg, 11.5-17.0 kg and 8.0-16.5 kg, respectively. The average GWG for all women was 15.0 kg.Conclusion BMI before pregnancy and weight gain in pregnancy are associated with birth weight of offspring, Excess weight gain was prevalent as compare as IOM guidelines. Interventional trials of targeted weight gain during pregnancy are urgently needed.
赵温, 周钰. 孕前BMI、孕期体重增加与新生儿出生体重关系探讨[J]. 中国生育健康杂志, 2016, 27(2): 115-118.
ZHAO Wen, ZHOU Yu. Gestational weight gain and its relationship with the birth weight of offspring by pre-pregnancy body mass index. Chinese Journal of Reproductive Health, 2016, 27(2): 115-118.
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