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Gestational weight gain charts for twin pregnancies in Southeast China.

ABSTRACT: BACKGROUND:To establish age-standardized charts of weight gain for term twin pregnancies in Southeast China. METHODS:We designed a retrospective study on data from women pregnant with twins, a gestational age beyond 36?weeks and an average weight???2500?g. We established hierarchical linear regression models to express gestational weight gain patterns. RESULTS:We analyzed data from 884 women pregnant with twins (151 underweight, 597 normal weight, and 136 overweight). Our final models fit the crude weight measurement data well. The means of weight gain generally decreased as the pre-pregnancy BMI increased. For each BMI category, the mean weight gains increased with the gestational age and the standard deviation increased slightly. The mean weight gains were 18.82?±?6.73, 18.53?±?6.74, and 16.97?±?6.95?kg at 37?weeks in underweight, normal weight, and overweight women, respectively. CONCLUSION:The weight gain chart can be used to estimate maternal weight gain to be gestational age-standardized z scores by pre-pregnancy BMI and may serve as an innovative tool for perinatal care providers to guide the weight gain of women pregnant with twins.

SUBMITTER: Lin L

PROVIDER: S-EPMC7041099 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Gestational weight gain charts for twin pregnancies in Southeast China.

Lin Lihua L Lin Juan J Mao Xiaodan X Xu Libo L Zhang Ronghua R Luo Jinying J Lin Yingying Y Yan Jianying J Yan Jianying J

BMC pregnancy and childbirth 20200224 1

<h4>Background</h4>To establish age-standardized charts of weight gain for term twin pregnancies in Southeast China.<h4>Methods</h4>We designed a retrospective study on data from women pregnant with twins, a gestational age beyond 36 weeks and an average weight ≥ 2500 g. We established hierarchical linear regression models to express gestational weight gain patterns.<h4>Results</h4>We analyzed data from 884 women pregnant with twins (151 underweight, 597 normal weight, and 136 overweight). Our f ...[more]

PMID: 32093673

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Project description:IntroductionTo date, there have only been provisional recommendations about the appropriate gestational weight gain in twin pregnancies. This study aimed to contribute evidence to this gap of knowledge.Material and methodsUsing a cohort of 10 603 twin pregnancies delivered between 2000 and 2015 in the state of Hessen, Germany, the individual and combined impact of maternal body mass index and gestational weight gain on maternal and neonatal outcomes was analyzed using uni- and multivariable logistic regression models. The analysis used newly defined population-based quartiles of gestational weight gain in women carrying twin pregnancies (Q1: <419.4 g/week [low weight gain], Q2-Q3: 419.4-692.3 g/week [optimal weight gain], Q4: >692.3 g/week [high weight gain]) and the World Health Organization body mass index classification.ResultsPre-pregnancy body mass index ≥25 kg/m2 was associated with significantly increased rates of cesarean deliveries (aOR1.2, 95% CI: 1.01-1.41) and pregnancy-induced hypertensive disorders (aOR 1.53, 95% CI: 1.11-2.1) but not with any adverse neonatal outcome. Perinatal mortality (aOR 2.23, 95% CI: 1.38-3.6), preterm birth (aOR 1.88, 95% CI: 1.58-2.25), APGAR'5 < 7 (aOR 1.61, 95% CI: 1.19-2.17) and admissions to the neonatal intensive care unit (aOR 1.6, CI: 1.38-1.85) were increased among women with low gestational weight gain. Rates of cesarean deliveries were high in both women with low (aOR 1.25, 95% CI: 1.05-1.48) and high gestational weight gain (aOR 1.17, 95% CI: 1.01-1.35). A high gestational weight gain was also associated with higher rates of hypertensive disorders in pregnancy (aOR 2.32, 95% CI: 1.79-3.02) and postpartum hemorrhage (aOR 1.72, 95%CI: 1.12-2.63). The risk of preterm birth, low Apgar scores and NICU admissions showed a converse linear relation with pre-pregnancy body mass index in women with low gestational weight gain.ConclusionsIn twin pregnancies, nonoptimal weekly maternal weight gain seems to be strongly associated with maternal and neonatal adverse outcomes. Since gestational weight gain is a modifiable risk factor, health care providers have the opportunity to counsel pregnant women with twins and target their care accordingly. Additional research to confirm the validity and generalizability of our findings in different populations is warranted.

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Gestational weight gain charts for twin pregnancies in Southeast China.

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Gestational weight gain charts for twin pregnancies in Southeast China.

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