Betty Bivens

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OBJECTIVE We sought to determine whether 4000 IU/d (vs 2000 IU/d) of vitamin D during pregnancy is safe and improves maternal/neonatal 25-hydroxyvitamin D [25(OH)D] in a dose-dependent manner. STUDY DESIGN A total of 257 pregnant women 12-16 weeks' gestation were enrolled. Randomization to 2000 vs 4000 IU/d followed 1-month run-in at 2000 IU/d.(More)
OBJECTIVE Determine prevalence of vitamin D deficiency (VDD) in a diverse group of women presenting for obstetrical care at two community health centers in South Carolina at latitude 32°N. METHODS AND DESIGN Any pregnant woman presenting for care at 2 community health centers was eligible to participate. Sociodemographic and clinical history were(More)
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