TABLE 1.

Characteristics of Study Infants (Mean ± SD)

CharacteristicAdvancing VolumesMinimal Volumes
n7071
Gestational age (wk)28 ± 228 ± 2
Birth weight (g)1059 ± 2771005 ± 247
Day study entry9.3 ± 5.410.3 ± 6.0
Antenatal steroids (%)36 (51)45 (63)
Postnatal steroids (%)14 (20)16 (23)
Breast milk fed (%)24 (34)18 (25)
PDA (%)17 (24)28 (40)
IVH (%)16 (23)19 (27)
Ethnicity
 Black (%)23 (33)18 (25)
 Hispanic (%)46 (66)48 (68)
 White (%)1 (1)3 (4)
 Asian (%)02 (3)
Male (%)34 (49)30 (42)
  • SD indicates standard deviation; PDA, patent ductus arteriosus; IVH, intraventricular hemorrhage.