TABLE 1.

Characteristic of Infants in the Control and sPDA Groups

Control (n = 43)sPDA (n = 23)P Value
Gestational age, wk30.3 ± 2.429.1 ± 2.75NS
Birth weight, g1396 ± 4181283 ± 359NS
Male/female20/2311/12NS
Use of antenatal steroid34 (79.1%)15 (65.2%)NS
Caesarean section32 (74.4%)16 (69.6%)NS
Apgar score
    1 min4.2 ± 1.82.7 ± 2.0.003
    5 min6.4 ± 1.84.6 ± 1.9<.001
RDS with surfactant therapy17 (39.5%)19 (73.9%).008
Dopamine19 (44.2%)20 (87.0%)<.001
Age at first evaluation, h56.7 ± 11.852.4 ± 14.4NS
Large ductal shunt*7 (16.3%)23 (100%)<.001
  • Values are expressed as numbers (%) of infants or means ± SD. NS indicates not significant; RDS, respiratory distress syndrome.

  • * Graded by assessing color Doppler flow in the main pulmonary artery.