Skip to main content

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%)
  1. SD standard deviation, cm centimeter, IQR interquartile range
  2. aAntibiotic exposure defined as days of therapy (DOT)