Table 1. Characteristics of the 43 children in the study including systemic antibiotic exposure, delivery mode, and diet.
Vaginal delivery (n = 24)Cesarean section (n = 19)
Antibiotics +Antibiotics −Antibiotics +Antibiotics −
Breast milk–dominant10 (23%)*10 (23%)8 (19%)3 (7%)
Formula-dominant2 (5%)2 (5%)5 (12%)3 (7%)

*The number of children (percentage of total) categorized by delivery mode, whether they were exposed to antibiotics at any time during the study, and their predominant diet during the first 3 months of life.