TABLE 1

Descriptive Characteristics of the Study Cohort

CharacteristicTotal
Maternal, %
    Medications received
        Antibiotics69.9
        Tocolytics42.1
        Antenatal steroids82.6
Intrapartum, %
    Multiple births28.0
    Labor63.9
    Ruptured membranes >18 h24.6
    Cesarean section63.1
Infant characteristics
    Birth weight, mean ± SD, g1032 ± 288
    Gestational age, mean ± SD, wk28.0 ± 2.8
    Male, %51.2
Delivery room
    Apgar at 1 min <7, %56.1
    Apgar at 5 min <7, %24.9
    Umbilical artery pH, mean ± SD7.26 ± 0.11
    Umbilical artery base deficit, mean ± SD−4.5 ± 4.3
    Intubation, %52.4
    Chest compressions/medications, %6.8