OBJECTIVE To estimate the association between maternal weight gain and SPTB in twin pregnancies. METHODS A case-control study of patients with twin pregnancies and a normal prepregnancy BMI (18.5-24.9 kg/m(2)) in one maternal-fetal medicine practice from 2005 to 2013. We reviewed maternal weight in six time periods: prepregnancy, 12-15 6/7 weeks, 16-19 6/7 weeks, 20-23 6/7 weeks, 24-27 6/7 we...

OBJECTIVE Maternal prepregnancy obesity is associated with several poor infant health outcomes; however, studies that investigated motor development have been inconsistent. Thus, maternal prepregnancy weight status and infants' gross motor development were examined. METHODS Participants consisted of 4,901 mother-infant pairs from the Upstate KIDS study, a longitudinal cohort in New York. Moth...

BACKGROUND Obesity and diabetes are highly prevalent among pregnant women in the United States. No study has examined the independent and combined effects of maternal prepregnancy obesity and maternal diabetes on the risk of autism spectrum disorder (ASD) in parallel with other developmental disorders (DDs). METHODS This study is based on 2734 children (including 102 ASD cases), a subset of t...

OBJECTIVE Prepregnancy to postpregnancy change in weight, body mass index (BMI), waist circumference, diet, and physical activity in women with and without gestational diabetes mellitus (GDM) were compared. DESIGN AND METHODS Using the Coronary Artery Risk Development in Young Adults study, women with at least one pregnancy during 20 years of follow-up (n = 1,488 with 3,125 pregnancies) was i...

OBJECTIVE Unhealthy maternal weight before pregnancy increases the risk of various adverse pregnancy outcomes. We conducted a nutrition survey to provide baseline data on the prepregnant nutritional status of mothers in order to better understand the association between prepregnancy maternal body mass index (BMI) and adverse pregnancy outcomes. DESIGN A large, prospective, population-based co...

To clarify the role of the intestine, kidney, and bone in maintaining calcium homeostasis during pregnancy and lactation and after the resumption of menses, a longitudinal comparison was undertaken of 14 well-nourished women consuming approximately 1200 mg Ca/d. Measurements were made before conception (prepregnancy), once during each trimester of pregnancy (T1, T2, and T3), early in lactation ...

BACKGROUND Long-term obesity after pregnancy is associated with obesity prior to pregnancy and retention of weight postpartum. This study aims to identify socioeconomic differences in prepregnancy body mass index, quantify the impact of prepregnancy obesity on birth outcomes, and identify determinants of postpartum weight retention. METHODS A total of 2231 pregnant women, recruited from three...

BACKGROUND Previous studies observed inverse associations of adherence to the alternate Mediterranean (aMED), Dietary Approaches to Stop Hypertension (DASH), and alternate Healthy Eating Index (aHEI) dietary patterns with risk of type 2 diabetes; however, their associations with gestational diabetes mellitus (GDM) risk are unknown. OBJECTIVE This study aimed to assess usual prepregnancy adher...

Women who are overweight or obese prepregnancy have shorter durations of producing milk (PM) and feeding breast milk exclusively (FBM-ex) than normal-weight women. We proposed that infant size at birth may reduce the negative associations between prepregnancy BMI and the durations of PM and FBM-ex. We used data from 2798 participants in the Infant Feeding Practices Study II and characterized in...

OBJECTIVE To examine changes in health status among women with gestational diabetes mellitus (GDM) and pregnancy-induced hypertension (PIH). METHODS We examined perceived health status changes from the prepregnancy, as recalled at 12-20 weeks gestation, to the postpartum period in women with GDM (n = 64) vs. unaffected gravidas (n = 1233) and women diagnosed with PIH (n = 148) vs. unaffected ...