Table I.
Characteristics of the Study Cohort
| Variable | Overall (n = 93) | No BPD (n = 47) | BPD (n = 46) | P-value |
|---|---|---|---|---|
| Birth Weight (grams) | 994 (170) | 1067 (127) | 919 (177) | <0.01 |
| Birth Weight Z-Score | −0.38 (0.6) | −0.25 (0.61) | −0.52 (0.66) | 0.04 |
| Gestational Age (weeks) | 28 (0.8) | 28.1 (0.8) | 27.5 (0.6) | <0.01 |
| Gender (Male) | 44 (47.3%) | 18 (38.3%) | 26 (56.5%) | 0.08 |
| Small for Gestational Age | 4 (4.3%) | 3 (6.4%) | 1 (2.2%) | 0.62 |
| Antenatal Corticosteroids | 74 (79.6%) | 39 (83%) | 35 (76.1%) | 0.41 |
| PDA - Medical Treatment | 30 (32.3%) | 13 (27.7%) | 17 (37%) | 0.09 |
| PDA - Surgical Ligation | 7 (7.5%) | 0 (0%) | 7 (15.2%) | 0.01 |
| Pneumonia | 8 (8.6%) | 1 (2.1%) | 7 (15.2%) | 0.02 |
| Necrotizing Enterocolitis | 13 (14%) | 8 (17%) | 5 (10.9%) | 0.39 |
| Sepsis | 14 (15.1%) | 4 (8.5%) | 10 (21.7%) | 0.07 |
| Pulmonary Hypertension | 11 (11.8%) | 1 (2%) | 10 (21.7%) | <0.01 |
| Days of MV | 6 (2 — 15) | 3 (1 – 7) | 13.5 (4 – 25) | <0.01 |
| NICU length of stay (days) | 82 (72 — 97) | 73 (63 – 89) | 90 (81 – 109) | <0.01 |
| Discharged on Oxygen | 48 (51.6%) | 20 (42.6%) | 28 (60.9%) | 0.08 |
| Mortality | 3 (3.2%) | 0 (0%) | 3 (6.5%) | 0.08 |
Abbreviations: PDA, Patent ductus arteriosus; MV, Mechanical ventilation; NICU, Neonatal intensive care unit
*
Data are presented as N (%) for categorical variables and Mean (Std) or Median (25th percentile – 75th percentile) for continuous variables.