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Association Between Gestational Weight Gain and Perinatal Outcomes.

ABSTRACT: OBJECTIVE:To evaluate the association between gestational weight gain and maternal and neonatal outcomes in a large, geographically diverse cohort. METHODS:Trained chart abstractors at 25 hospitals obtained maternal and neonatal data for all deliveries on randomly selected days over 3 years (2008-2011). Gestational weight gain was derived using weight at delivery minus prepregnancy or first-trimester weight and categorized as below, within, or above the Institute of Medicine (IOM) guidelines in this retrospective cohort study. Maternal (primary or repeat cesarean delivery, third- or fourth-degree lacerations, severe postpartum hemorrhage, hypertensive disease of pregnancy) and neonatal (preterm birth, shoulder dystocia, macrosomia, hypoglycemia) outcomes were compared among women in the gestational weight gain categories in unadjusted and adjusted analyses with odds ratios (ORs) and 95% CI reported. Covariates included age, race-ethnicity, tobacco use, insurance type, parity, prior cesarean delivery, pregestational diabetes, hypertension, and hospital type. RESULTS:Of the 29,861 women included, 51% and 21% had gestational weight gain above and below the guidelines, respectively. There was an association between gestational weight gain above the IOM guidelines and cesarean delivery in both nulliparous women (adjusted OR 1.44, 95% CI 1.31-1.59) and multiparous women (adjusted OR 1.26, 95% CI 1.13-1.41) and hypertensive diseases of pregnancy in nulliparous and multiparous women combined (adjusted OR 1.84, 95% CI 1.66-2.04). For the neonatal outcomes, gestational weight gain above the IOM guidelines was associated with shoulder dystocia (adjusted OR 1.74, 95% CI 1.41-2.14), macrosomia (adjusted OR 2.66, 95% CI 2.03-3.48), and neonatal hypoglycemia (adjusted OR 1.60, 95% CI 1.16-2.22). Gestational weight gain below the guidelines was associated with spontaneous (adjusted OR 1.50, 95% CI 1.31-1.73) and indicated (adjusted OR 1.34, 95% CI 1.12-1.60) preterm birth. CONCLUSION:In a large, diverse cohort with prospectively collected data, gestational weight gain below or above guidelines is associated with a variety of adverse pregnancy outcomes.

SUBMITTER: Kominiarek MA

PROVIDER: S-EPMC6153045 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Association Between Gestational Weight Gain and Perinatal Outcomes.

Kominiarek Michelle A MA Saade George G Mele Lisa L Bailit Jennifer J Reddy Uma M UM Wapner Ronald J RJ Varner Michael W MW Thorp John M JM Caritis Steve N SN Prasad Mona M Tita Alan T N ATN Sorokin Yoram Y Rouse Dwight J DJ Blackwell Sean C SC Tolosa Jorge E JE

Obstetrics and gynecology 20181001 4

<h4>Objective</h4>To evaluate the association between gestational weight gain and maternal and neonatal outcomes in a large, geographically diverse cohort.<h4>Methods</h4>Trained chart abstractors at 25 hospitals obtained maternal and neonatal data for all deliveries on randomly selected days over 3 years (2008-2011). Gestational weight gain was derived using weight at delivery minus prepregnancy or first-trimester weight and categorized as below, within, or above the Institute of Medicine (IOM) ...[more]

PMID: 30204701

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Project description:BackgroundNearly half of all women exceed the 2009 Institute of Medicine guidelines for gestational weight gain. Excess gestational weight gain is associated with adverse pregnancy outcomes.ObjectiveOur objective was to determine whether having a personal gestational weight gain goal consistent with the Institute of Medicine's recommendations for appropriate gestational weight gain and whether having a discussion with one's obstetrical provider regarding that goal were associated with appropriate gestational weight gain.Study designThis is a secondary analysis of the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-To-Be study, a prospective cohort study of nulliparous women. We asked women at their first study visit (between 6 and 13 weeks' gestation) whether they had a gestational weight gain goal and what that goal was. Furthermore, we asked whether their provider discussed a gestational weight gain goal and what that goal was. We classified personal and provider-recommended gestational weight gain goals as consistent or inconsistent with the Institute of Medicine guidelines, taking into account a woman's initial body mass index category (underweight, normal weight, overweight, and obese). We included women with live singleton term deliveries (between 37 and 43 weeks' gestation) in this analysis. We classified the primary outcome, which was gestational weight gain (defined as the difference between first visit weight and final weight before delivery), as inadequate, appropriate, or excessive, based on the Institute of Medicine guidelines and initial body mass index category. We used Student t, Wilcoxon rank-sum, and chi-square tests for bivariable analyses, and multinomial logistic regression was performed to control for confounding variables.ResultsOf 6727 eligible women, 3799 (56.5% of all eligible women) stated they had a gestational weight gain goal. Of the 3799 women with a stated goal, 2589 (38.5% of all women) had a goal consistent with the Institute of Medicine's recommendations. In addition, of the 6727 eligible women, 2188 (32.5%) reported that they discussed gestational weight gain with their provider, and 1548 of these (23.0% of all women) recalled that their provider gave a gestational weight gain goal in accordance with the Institute of Medicine guidelines. Although having any gestational weight gain goal was not associated with appropriate gestational weight gain, having a gestational weight gain goal that was consistent with the Institute of Medicine's recommendations was associated with a reduced risk of excessive (adjusted relative risk ratio, 0.77; 95% confidence interval, 0.64-0.92) and inadequate weight gain (adjusted relative risk ratio, 0.66; 95% confidence interval, 0.53-0.82). Conversely, discussing gestational weight gain goals with a provider was not associated with either inadequate or excessive gestational weight gain even if the provider's recommendations for gestational weight gain were consistent with the guidelines.ConclusionNulliparas who delivered singleton pregnancies at term who had a personal gestational weight gain goal consistent with the Institute of Medicine's recommendations were less likely to have excessive or inadequate gestational weight gain. Further study is required to evaluate the most effective way to communicate this information to patients.

Project description:ImportanceBoth low and high gestational weight gain have been associated with adverse maternal and infant outcomes, but optimal gestational weight gain remains uncertain and not well defined for all prepregnancy weight ranges.ObjectivesTo examine the association of ranges of gestational weight gain with risk of adverse maternal and infant outcomes and estimate optimal gestational weight gain ranges across prepregnancy body mass index categories.Design, setting, and participantsIndividual participant-level meta-analysis using data from 196 670 participants within 25 cohort studies from Europe and North America (main study sample). Optimal gestational weight gain ranges were estimated for each prepregnancy body mass index (BMI) category by selecting the range of gestational weight gain that was associated with lower risk for any adverse outcome. Individual participant-level data from 3505 participants within 4 separate hospital-based cohorts were used as a validation sample. Data were collected between 1989 and 2015. The final date of follow-up was December 2015.ExposuresGestational weight gain.Main outcomes and measuresThe main outcome termed any adverse outcome was defined as the presence of 1 or more of the following outcomes: preeclampsia, gestational hypertension, gestational diabetes, cesarean delivery, preterm birth, and small or large size for gestational age at birth.ResultsOf the 196 670 women (median age, 30.0 years [quartile 1 and 3, 27.0 and 33.0 years] and 40 937 were white) included in the main sample, 7809 (4.0%) were categorized at baseline as underweight (BMI <18.5); 133 788 (68.0%), normal weight (BMI, 18.5-24.9); 38 828 (19.7%), overweight (BMI, 25.0-29.9); 11 992 (6.1%), obesity grade 1 (BMI, 30.0-34.9); 3284 (1.7%), obesity grade 2 (BMI, 35.0-39.9); and 969 (0.5%), obesity grade 3 (BMI, ≥40.0). Overall, any adverse outcome occurred in 37.2% (n = 73 161) of women, ranging from 34.7% (2706 of 7809) among women categorized as underweight to 61.1% (592 of 969) among women categorized as obesity grade 3. Optimal gestational weight gain ranges were 14.0 kg to less than 16.0 kg for women categorized as underweight; 10.0 kg to less than 18.0 kg for normal weight; 2.0 kg to less than 16.0 kg for overweight; 2.0 kg to less than 6.0 kg for obesity grade 1; weight loss or gain of 0 kg to less than 4.0 kg for obesity grade 2; and weight gain of 0 kg to less than 6.0 kg for obesity grade 3. These gestational weight gain ranges were associated with low to moderate discrimination between those with and those without adverse outcomes (range for area under the receiver operating characteristic curve, 0.55-0.76). Results for discriminative performance in the validation sample were similar to the corresponding results in the main study sample (range for area under the receiver operating characteristic curve, 0.51-0.79).Conclusions and relevanceIn this meta-analysis of pooled individual participant data from 25 cohort studies, the risk for adverse maternal and infant outcomes varied by gestational weight gain and across the range of prepregnancy weights. The estimates of optimal gestational weight gain may inform prenatal counseling; however, the optimal gestational weight gain ranges had limited predictive value for the outcomes assessed.

Project description:It is unclear whether weight management is still effective for pregnant women with excessive weight gain in the second or third trimester in China. This study adopted individualized weight management intervention for pregnant women with abnormal weight gain in the second or third trimester, to analyze the effect of intervention by observing the gestational weight gain and perinatal outcomes. This randomized controlled trial was performed at Aerospace Center Hospital. The obstetrician determined whether the pregnant women gained too much weight in the second or third trimester according to the Institute of Medicine guidelines, and randomly divided the pregnant women who gained too much weight in the second or third trimester into the intervention group or the control group according to the inclusion and exclusion criteria. The pregnant women in the intervention group and in the control group all received routine prenatal examination and diet nutrition education by the doctors in the Department of Obstetrics and Gynecology. The intervention group underwent individualized weight management, including individualized diet, exercise, psychological assessment, cognitive intervention and continuous communication, the whole process is tracked and managed by professional nutritionists. The obstetrician collected the prenatal examination data and pregnancy outcome data of all enrolled pregnant women. The primary outcome measure was weight gain during pregnancy. A generalized linear model and a logistic regression model were used to compare the outcomes between the two groups. In total, 348 pregnant women participated in this study with 203 in the intervention group and 145 in the control group. The whole gestational weight gain in the intervention group (15.8 ± 5.4 Kg) was lower than that in the control group (17.5 ± 3.6 Kg; adjusted β = - 1.644; 95% CI [-2.660--0.627]; P = 0.002). The percent of pregnant women with excessive weight gainbefore delivery was 54.2% (110/203) in the intervention group, which was lower than 69.7% (101/145) in the control group (adjusted RR = 0.468; 95% CI [0.284-0.769] P = 0.003). The pregnant women given the individualized weight management intervention from the second to the third trimester experienced less weight gain than that from the third trimester (15.5 ± 5.6 Kg vs. 16.2 ± 5.2 Kg), but without significant difference (P = 0.338). Lower rates of GDM, preeclampsia and gestational hypertension, higher rates of fetal distress and puerperal infection were observed in the intervention group than in the control group (all P < 0.05). Individualized weight management during the second or third trimesters is still beneficial for pregnant women who gain excessive weight and can decrease the associated adverse outcomes.

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Association Between Gestational Weight Gain and Perinatal Outcomes.

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Association Between Gestational Weight Gain and Perinatal Outcomes.

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