Table 1.

Characteristics of Study Infants

Fortified Human Milk (n = 62)Preterm Formula (n = 46)
Birth weight (g)1069  ± 169* 1044 ± 185 
Gestational age (wk)27.9  ± 1.2 27.9 ± 1.1 
Sex (% males)53 59
Ethnicity (% Hispanic, black, white, Asian)18, 24, 58, 033, 26, 39, 2
Maternal education (y) 15.0  ± 2.512.9 ± 1.5 
Antenatal steroid exposure, n(%) 43 (69)19 (46)
Randomization to GI priming, n(%)38 (61)22 (48)
Randomization to bolus tube-feeding, n(%)29 (47)25 (54)
Duration of study (days of hospitalization) 73  ± 1988 ± 47
  • Abbreviation: GI, gastrointestinal.

  • * Values are mean ± SD.

  • P = .03,

  • Differences between groups:

    P = .004.