Table 5. Morbidity of infants with RDS who died.
| Clinical finding | < 1,000 (n = 538) | 1,000–1,500 (n = 147) | 1,500–2,500 (n = 227) | > 2,500 (n = 271) | Totala (n = 1,229) | P value |
|---|---|---|---|---|---|---|
| Pulmonary hemorrhage | 109 (20.3) | 20 (13.6) | 14 (6.2) | 9 (3.3) | 165 (13.4) | < 0.001 |
| Pneumothorax | 100 (18.6) | 15 (10.2) | 14 (6.2) | 22 (8.1) | 175 (14.2) | < 0.001 |
| Pneumothorax with chest tube | 82 (15.2) | 12 (8.2) | 11 (4.8) | 8 (3.0) | 113 (9.2) | < 0.001 |
| BPD | 70 (13.0) | 8 (5.4) | 8 (3.5) | 3 (1.1) | 101 (8.2) | < 0.001 |
| PDA | 316 (58.7) | 54 (36.7) | 30 (13.2) | 20 (7.4) | 481 (39.1) | < 0.001 |
| PDA ligation | 56 (10.4) | 9 (6.1) | 2 (0.9) | 2 (0.7) | 79 (6.4) | < 0.001 |
| IVH | 212 (39.4) | 24 (16.3) | 18 (7.9) | 5 (1.8) | 284 (23.1) | < 0.001 |
| HIE | 4 (0.7) | 3 (2.0) | 7 (3.1) | 3 (1.1) | 18 (1.5) | < 0.001 |
| PVL | 9 (1.7) | 4 (2.7) | 5 (2.2) | 0 (0) | 21 (1.7) | 0.004 |
| PPHN | 86 (16.0) | 23 (15.6) | 19 (8.4) | 19 (7.0) | 177 (14.4) | < 0.001 |
| MAS | 0 (0) | 4 (2.7) | 2 (0.9) | 12 (4.4) | 19 (1.5) | < 0.001 |
Data are presented as number (%).
RDS = respiratory distress syndrome, BPD = bronchopulmonary dysplasia, PDA = patent ductus arteriosus, IVH = intraventricular hemorrhage, HIE = hypoxic ischemic encephalopathy, PVL = periventricular leukomalacia, PPHN = persistent pulmonary hypertension, MAS = meconium aspiration syndrome.
aTotal number of infants with RDS who died. The number available for birth weight data was 1,183 (96%).