Alison D. Gernand

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OBJECTIVE To examine the association between second-trimester maternal serum 25-hydroxyvitamin D concentrations and risk of small for gestational age (SGA) in singleton live births. METHODS We assayed serum samples at 12-26 weeks of gestation for 25-hydroxyvitamin D in a sample of participants in a multicenter clinical trial of low-dose aspirin for the(More)
BACKGROUND Maternal vitamin D status in pregnancy is linked to foetal growth and may impact infant growth. AIM This study examined the association between maternal vitamin D status and infant anthropometry. SUBJECTS AND METHODS Data came from n = 2473 mother-child pairs from the 12-site US Collaborative Perinatal Project (1959-1965). Maternal serum(More)
CONTEXT Inconsistent associations between maternal vitamin D status and fetal size have been published in small studies. OBJECTIVE Our objective was to examine the association between maternal 25-hydroxyvitamin D [25(OH)D] levels and measures of newborn and placental weight. DESIGN AND SETTING We measured maternal 25(OH)D in mothers from the(More)
BACKGROUND Maternal vitamin D deficiency has been linked to fetal growth restriction, but the underlying mechanisms are unclear. OBJECTIVE We tested the hypothesis that poor maternal 25-hydroxyvitamin D [25(OH)D] is associated with increased risk of placental vascular pathology. DESIGN Maternal serum 25(OH)D was measured at ≤26 wk of gestation in a(More)
The objective of this study was to determine the association between maternal 25-hydroxyvitamin D (25(OH)D) and the risk of spontaneous preterm birth (sPTB) before 35 weeks' gestation. A random subcohort from the US Collaborative Perinatal Project (1959-1965) was sampled (n = 2,629) and augmented with all remaining cases of sPTB before 35 weeks' gestation(More)
BACKGROUND Studies using vital records-based maternal weight data have become more common, but the validity of these data is uncertain. METHODS We evaluated the accuracy of prepregnancy body mass index (BMI) and gestational weight gain (GWG) reported on birth certificates using medical record data in 1204 births at a teaching hospital in Pennsylvania from(More)
OBJECTIVE To examine the association between nutrition knowledge and eating behavior in a predominantly Mexican American population on the Texas-Mexico border. DESIGN Cross-sectional using data from the baseline survey of the Qué Sabrosa Vida community nutrition initiative. SETTING El Paso and surrounding counties in Texas. PARTICIPANTS Data gathered(More)
Aflatoxin B1 is a potent carcinogen, occurring from mold growth that contaminates staple grains in hot, humid environments. In this investigation, aflatoxin B1-lysine albumin biomarkers were measured by mass spectrometry in rural South Asian women, during the first and third trimester of pregnancy, and their children at birth and at two years of age. These(More)
Placental growth is a strong predictor of fetal growth, but little is known about maternal predictors of placental growth in malnourished populations. Our objective was to investigate in a prospective study the associations of maternal weight and body composition [total body water (TBW) estimated by bioelectrical impedance and fat and fat-free mass derived(More)
Micronutrients, vitamins and minerals accessible from the diet, are essential for biologic activity. Micronutrient status varies widely throughout pregnancy and across populations. Women in low-income countries often enter pregnancy malnourished, and the demands of gestation can exacerbate micronutrient deficiencies with health consequences for the fetus.(More)