Table 3.
Neonatal short-term complications and mortality by preterm birth subtype.
| Spontaneous (n = 1,038) | Iatrogenic (n = 651) | Total (n = 1,689) | P-value | |
|---|---|---|---|---|
| RDS | 986 (95.0%) | 627 (96.3%) | 1,613 (95.5%) | 0.202 |
| Pneumonia | 657 (63.3%) | 434 (66.7%) | 1,091 (64.6%) | 0.158 |
| Severe anemia | 587 (56.6%) | 372 (57.1%) | 959 (56.8%) | 0.811 |
| PPHN | 247 (23.8%) | 156 (24.0%) | 403 (23.9%) | 0.937 |
| PDA | 400 (38.5%) | 250 (38.4%) | 650 (38.5%) | 0.956 |
| NEC (II-III) | 28 (2.7%) | 42 (6.5%) | 70 (4.1%) | 0.000 |
| ROP | 22 (2.1%) | 17 (2.6%) | 39 (2.3%) | 0.512 |
| BPD | 366 (35.3%) | 234 (35.9%) | 600 (35.5%) | 0.775 |
| Cholestasis | 156 (15.0%) | 100 (15.4%) | 256 (15.2%) | 0.853 |
| IVH | 363 (35.0%) | 193 (29.6%) | 556 (32.9%) | 0.023 |
| IVH(III-IV) | 65 (6.3%) | 25 (3.8%) | 90 (5.3%) | 0.031 |
| Coagulopathy | 123 (11.8%) | 118 (18.1%) | 241 (14.3%) | 0.000 |
| PVL | 37 (3.6%) | 19 (2.9%) | 56 (3.3%) | 0.471 |
| Pathoglycemia | 8 (0.8%) | 14 (2.2%) | 22 (1.3%) | 0.015 |
| In-hospital death | 197 (19.0%) | 128 (19.7%) | 325 (19.2%) | 0.729 |
| <28w | 73 (48.0%) | 19 (55.9%) | 92 (49.5%) | 0.408 |
| 28–29+6 w | 83 (19.8%) | 52 (23.0%) | 135 (20.9%) | 0.341 |
| 30–31+6 w | 41 (8.8%) | 57 (14.6%) | 98 (11.4%) | 0.008 |
RDS, respiratory distress syndrome; PPHN, persistent pulmonary hypertension; PDA, patent ductus arteriosus; NEC, necrotizing enterocolitis; ROP, retinopathy of prematurity; BPD, bronchopulmonary dysplasia; IVH, intraventricular hemorrhage; PVL, periventricular leukomalacia.