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Cohort Details
| Participants (n) | 50 |
| Median age (days) at Sample Collection (IQR) | 215 (190, 252) |
| Male sex | 100% |
| Birth History | |
| Caesarean section | 27 (54%) |
| Preterm | 18 (36%) |
| NICU following birth | 18 (36%) |
| Health Exposures | |
| Prior antibiotic exposure | 12 (24%) |
| Type of Nutrition | |
| Breast Milk only | 5 (10%) |
| Formula | 19 (38%) |
| Breast Milk and Formula | 15 (30%) |
| Solids or Puree | 11 (22%) |
| Urine Collection | |
| Volume of urine (mean, range) | 5.81 mL (0.4–28 mL) |
