Table 1

Characteristics of the study group

Gestational age (weeks+days*)33+5 (31–34+6)
Birth weight (g*)1900 (1127–2836)
Body weight, expected term (g*)3195 (2330–4540)
Males, n (% of all)29 (53)
SGA, n (% of all)19 (35)
Singletons (n)33
Twins, n (pairs)16 (8)
Triplets, n (pairs)6 (2)
Apgar at 1 min†7.9 (1.6)
Apgar at 5 min†8.1 (1.0)
Caesarean section (n)36
Surfactant therapy (n)3
Volume expansion2
Prenatal maternal steroids, n (% of total)39 (71)
PDA, n (days 1-2-3-expected term)46-22-9-2
  • PDA, persistent ductus arteriosus; SGA, small for gestational age.

  • *Values are median and range.

  • †Values are means±SD.