Characteristics of infants
| Non-BPD (n = 13) | BPD d28 (n = 16) | BPD 36 weeks (n = 11) | |
|---|---|---|---|
| *Values are mean (SD). | |||
| p values for non-BPD versus BPD d28 and BPD 36 weeks for variables including birth weight, gestational age, number of ventilation days, number of days on oxygen, length of NICU stay, postnatal dexamethasone and blood culture positive are <0.01 each. | |||
| †Represents p<0.01 for BPD 36 weeks versus non-BPD. | |||
| Race | |||
| White (%) | 30.8 | 43.8 | 54.5 |
| Black (%) | 46.2 | 50.0 | 36.4 |
| Asian (%) | 23.1 | 6.3 | 9.1 |
| Male (%) | 46.2 | 56.3 | 45.5 |
| Weight (g)* | 1110.9 (134.6) | 833.8 (118.6) | 670.9 (64.3) |
| Gestation (weeks)* | 28.8 (1.2) | 26.0 (1.1) | 24.9 (1.2) |
| Apgar 1 min* | 7 (1.3) | 6 (1.8) | 5 (1.7)† |
| Apgar 5 min* | 8 (0.8) | 7 (1.4) | 7 (0.7)† |
| Antenatal steroid (%) | 76.9 | 68.8 | 63.6 |
| Caesarean section (%) | 46.15 | 50.0 | 72.7† |
| No. of ventilation days* | 2.9 (3.9) | 13.1 (10.5) | 41.2 (28.7) |
| No. of days on oxygen* | 13 (10.0) | 45.9 (15.7) | 94.8 (2.06) |
| Length of hospital stay* | 49.9 (11.1) | 75.8 (13.2) | 118.2 (16.6) |
| Postnatal steroid (%) (during 3rd or 4th week) | 15.4 | 31 | 55 |
| Blood culture positive (%) (during 3rd or 4th week) | 0 | 25.0 | 45.5 |