Prepregnancy body mass index, gestational weight gain, and pregnancy outcomes in China |
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Authors: | Zhenyu Chen Juan Du Ling Shao Meiyan Wu Yinling Zhang |
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Affiliation: | a Department of Obstetrics and Gynecology, China Medical University-affiliated Shengjing Hospital, Shenyang, China b Department of Obstetrics and Gynecology, People's Liberation Army hospital No. 202, Shenyang, China |
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Abstract: | ObjectiveTo look for associations between pregnancy outcomes and prepregnancy body mass index and gestational weight gain among Han women from Shenyang province, China.MethodA total of 2586 women were distributed across 4 prepregnancy categories according to the Chinese classification of body mass index, and to 4 end-of-pregnancy categories according to median weekly gestational weight gain.ResultsThe risks for gestational hypertension, pre-eclampsia, gestational diabetes, and preterm premature rupture of membranes were higher for those who were overweight or obese before becoming pregnant (P < 0.05). Moreover, a gestational weight gain of 0.50 kg per week or greater was associated with a higher risk for gestational hypertension, preterm premature rupture of membranes, and fetal macrosomia (P < 0.05). Women in the highest quartile for weight gain (≥ 0.59 kg per week) were at higher risk for pre-eclampsia (P < 0.05).ConclusionA high prepregnancy body mass index and excessive gestational weight gain were associated with increased risks for adverse pregnancy outcomes. |
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Keywords: | Gestational weight gain Obesity Pregnancy Prepregnancy body mass index |
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