Table 2.

Characteristics of the Treatment Groups

CharacteristicExosurf
(n = 423)
Infasurf
(n = 423)
P Value
Mean ± SD
Birth weight (g)902 ± 244893 ± 234.55
Gestational age (wk)26.5 ± 1.5 26.5 ± 1.6 .54
Race%.70
 Black3638
 White5656
 Other86
Sex.17
 Male5651
 Female4449
Labor7982.34
Prenatal Steroids.74
 None6667
 <24 hours109
 1 to 7 days2221
 >7 days23
Prenatal tocolysis4952.45
Rupture of membranes >1 hour5045.15
Chorioamnionitis2019.79
Mode of Delivery.89
 Vaginal4646
 Cesarean section5454
Multiple births2120.73
Congenital sepsis13.23
Congenital anomalies211.0
Mean ± SD
Apgar score
 1 minute4.4 ± 2.44.5 ± 2.3.69
 5 minutes7.0 ± 1.77.1 ± 1.7.42
Cord pH7.30 ± 0.107.31 ± 0.09.66