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| Relationship between dietary energy intake or weight gain of pregnant women during pregnancy and their pregnancy outcomes#br# |
| The Third Affiliated Hospital of Zhengzhou University (The Maternity and Child Health Care Hospital of Henan Province), Zhengzhou City, Henan Province, 450052 |
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Abstract Objective: To investigate the relationship between dietary energy intake or weight gain of pregnant women with prepregnancy normal body mass index (BMI) during pregnancy and their pregnancy outcomes. Methods: From April 2015 to December 2018, 306 pregnant women were investigated by questioner. Results: The average weight before pregnancy of these 306 women was 52.7±7.9kg, their average weight before delivery was 69.7±8.6kg, and their average weight gain during pregnancy was 16.8±4.0 kg. According to the recommended intake of nutrients provided in the third trimester pregnancy by the Chinese dietary guidelines, with the increasing of total energy intake, gestational weeks when delivery, pregnancy age, or exercise during pregnancy, the weight gain during pregnancy increased gradually. The weight gain during pregnancy of women with less education level had significant more than that of other women (P<0.05). As the weight gain during pregnancy of pregnant women by tertiles, all women divided into three groups, which included 75 women with 11.0-15.0 kg gain, 109 women with 15.1-19.0 kg gain, and 122 women with 19.1-23.0kg gain, and there were significant different in the rates cesarean section, premature delivery, fetal distress, and low-weight children among the three groups. With the weight gain during pregnancy increasing, the incidence of adverse outcomes, the proportion of cesarean section and fetal distress had increased (P<0.05). Conclusion: The more dietary energy intake during pregnancy of women with pre-pregnancy normal BMI, the more weight gain during pregnancy, which may lead to adverse pregnancy outcomes.
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