Table 1 Characteristics of the study population
From: Antibiotic exposure and growth patterns in preterm, very low birth weight infants
Number of infants | 161 |
|---|---|
Gestational age (weeks, mean ± SD) | 28.5 ± 1.97 |
Delivery by caesarean section | 124 (77%) |
Singleton, twin, triplet gestation | 117 (73%), 39 (24%), 5 (3%) |
Male sex | 81 (50%) |
Birth weight (grams; mean ± SD) | 1130 ± 229 |
Birth length (cm; mean ± SD) | 37 ± 3 |
Ponderal index (mean ± SD) | 2.22 ± 0.28 |
Intrauterine growth restriction | 14 (9%) |
Small for gestational age | 9 (6%) |
Clinical Risk Index for Babies-II score (mean ± SD) | 7.4 ± 2.9 |
Antibiotic exposure (median; IQR)a | 11 (5.5–19.5) |
Bronchopulmonary dysplasia | 29 (18%) |
Patent ductus arteriosus | 40 (25%) |
Necrotizing enterocolitis (Bell stage ≥ 2) | 8 (5%) |
Late-onset sepsis | 1 episode, 19 (12%); 2 episodes, 9 (6%) |