Chinese Evidence-based Medicine Center and CREAT Group, West China Hospital, Sichuan University, Chengdu, China.
West China Women and Children's Hospital, Sichuan University, Chengdu, China.
Sci Rep. 2018 Oct 26;8(1):15865. doi: 10.1038/s41598-018-34227-8.
This study aimed to investigate the pattern of gestational weight gain (GWG) among Chinese women. We included pregnant women, who delivered at a referral medical center in China and had no pre-specified adverse pregnancy outcomes. We collected weight data across all pregnancy visits, and used the two-level spline linear model to fit for the pattern of GWG according to pre-pregnancy BMI categories. In total, 4,567 pregnant women with 47,699 repeated measures were eligible. For those who were underweight, normal and overweight before pregnancy, the interquartile ranges (25 to 75 quartiles) of GWG between 14 and 36 gestational weeks were 12.9-17.7 kg, 12.6-17.3 kg and 11.7-16.8 kg, and the corresponding rates of GWG were 2.62 kg/month, 2.56 kg/month and 2.37 kg/month. For underweight and normal women, the rates of GWG were similar before 14 weeks (0.57 and 0.58 kg/month) and after 36 weeks (1.69 and 1.70 kg/month); however, the rates of GWG were higher for overweight women (0.66 kg/month before 14 weeks and 1.89 kg/month after 36 weeks). In summary, the pattern of GWG among Chinese pregnant women is generally consistent with the IOM recommendation, particularly for those who are normal or underweight. Modifications are, however, warranted for overweight pregnant women.
本研究旨在探讨中国女性妊娠期体重增加（GWG）的模式。我们纳入了在中国一家转诊医疗中心分娩且无特定不良妊娠结局的孕妇。我们收集了所有妊娠就诊时的体重数据，并使用两水平样条线性模型，根据孕前 BMI 类别拟合 GWG 的模式。共有 4567 名孕妇的 47699 次重复测量符合条件。对于那些孕前体重不足、正常和超重的孕妇，14 至 36 孕周的 GWG 中位数（25 至 75 分位数）分别为 12.9-17.7kg、12.6-17.3kg 和 11.7-16.8kg，相应的 GWG 率分别为 2.62kg/月、2.56kg/月和 2.37kg/月。对于体重不足和正常的孕妇，在 14 周前（0.57 和 0.58kg/月）和 36 周后（1.69 和 1.70kg/月）GWG 率相似；然而，超重孕妇的 GWG 率更高（14 周前为 0.66kg/月，36 周后为 1.89kg/月）。总之，中国孕妇 GWG 的模式总体上与 IOM 建议一致，特别是对于正常或体重不足的孕妇。然而，超重孕妇需要进行调整。
