TABLE 1

Infant Participant Characteristics by Study Arm

Control (n = 92)Probiotic (n = 92)
Boys48 (52%)44 (48%)
Racea
 White77 (85%)72 (78%)
 African American10 (11%)14 (15%)
 American Indian, Alaskan Native12 (13%)10 (11%)
 Asian19 (21%)22 (24%)
 Pacific Islander4 (4%)3 (3%)
 Other8 (32%)18 (20%)
Hispanic ethnicity19 (21%)27 (29%)
Gestational age, wk (SD)38.9 (1.3)39.0 (1.4)
Birth weight, g (SD)3440 (442)3427 (506)
Cesarean delivery21 (23%)27 (29%)
Mean number of months breastfeeding in first year of life (SD)7.5 (5.1)7.7 (4.9)
Breastfeeding exposure
 None20 (22%)16 (17%)
 <12 mo31 (34%)29 (32%)
 ≥12 mo41 (45%)47 (51%)
  • a The percentage of infants in each race category is >100%. Fifty-nine (32%) parents of these infants selected more than 1 race when describing their infants.