TABLE 1

Demographics of the study population at baseline (n = 263)

CharacteristicMean (SD)MedianRange
Age (yr)24.0 (6.75)22.014–44
Body mass index (kg/m²)23.2 (3.91)22.415.6–41.7
Body wt (kg)58.3 (10.8)55.939.3–108
Gestational age (wks)17.8 (5.85)19.08–28
Hemoglobin concn (g/dl]10.2 (1.38)10.35.7–14.7