Follow up of infants who developed pulmonary branch stenosis (PBS) compared with those with PBS present at birth
| Infants who developed PBS (n=19) | Infants with PBS present at birth (n=5) | p Value | |
| Gestational age (weeks) | 28 (24–31) | 28 (26–29) | |
| Birth weight (g) | 980 (680–1870) | 1090 (840–1540) | |
| PBS resolved Days of life | 53 (10–144) | 131 (39–150) | 0.0006 |
| Corrected gestational age (weeks) | 36 (29–52) | 46 (35–52) | 0.027 |
The results are expressed as median (range).