Table 1.

The demographic data of the infants included in INTERPDA study.

	No. of patients (n = 1,193)
Gestational age (wk)*	26.7 ± 1.4
Birth weight (g)*	926 ± 243
Gender (male), n (%)	605 (51)
Type of delivery (C/S), n (%)	949 (79)
Multiple gestation, n (%)	231 (19)
PPROM, n (%)	288 (24)
Preeclampsia, n (%)	305 (26)
Chorioamnionitis, n (%)	112 (9)
Antenatal steroid, n (%)	83 (70)
Delivery room intubation, n (%)	555 (46)
Surfactant use, n (%)	956 (80)
RDS, n (%)	986 (83)
Early-onset sepsis, n (%)	436 (36)

C/S, cesarean section; PPROM, prolonged premature rupture of membranes; RDS, respiratory distress syndrome.

^*Data given mean ± SD.