| Patients’ Characteristics | Patients (n = 12) | |
| Male | 9 | (75%) |
| Female | 3 | (25%) |
| Gestational age at birth (weeks) | 31.8 ± 6 [23.4 - 40] | |
| Birth weight (g) | 1759 ± 1106 [660 - 3580] | |
| Ethnicity |
|
|
| African American | 7 | (58%) |
| Caucasian | 5 | (42%) |
| Etiology of PH |
|
|
| PH associated with bronchopulmonary dysplasia | 5 | (42%) |
| PAH associated with CHD | 3 | (25%) |
| PPHN | 4 | (33%) |
| Age at diagnosis (months) | 3.6 ± 2.4 [0.2 - 7.2] | |
| Age at time of Bosentan initiation (months) | 9.6 ± 4.4 [3 - 17.8] | |
| Time from diagnosis to initiation of Bosentan therapy (months) | 6.0 ± 5.2 [0.3 - 17.8] | |
| ICU survival | 7 | (58%) |
| Hospital survival | 7 | (58%) |