Table 1 Comparison of baseline and neonatal characteristics of infants who had received a BSID-II testing versus infants who survived to follow-up but who did not receive a BSID-II testing
|  | BSID-II (n = 684) | No BSID-II (n = 160) |  |
|---|---|---|---|
|  | N (%) | N (%) | p-value§ |
Median (IQR) | Median (IQR) | ||
Inborn | 654 (96%) | 144 (90%) | 0.005 |
Male gender | 362 (53%) | 89 (56%) | 0.54 |
Gestational age [weeks] | 26.7 (25.9-27.3) | 27 (26.1-27.6) | 0.007 |
Birth weight [gram] | 855 (730–990) | 940 (800–1100) | <0.001 |
SGA | 52 (8%) | 7 (5%) | 0.15 |
Singleton | 487 (71%) | 121 (76%) | 0.26 |
Antenatal corticosteroids (completed) | 441 (69%) | 99 (65%) | 0.29 |
Caesarean delivery | 552 (81%) | 117 (73%) | 0.028 |
SES score | 6 (4–8) | 6 (4–8) | 0.72 |
Umbilical artery pH | 7.31 (7.25-7.35) | 7.30 (7.23-7.34) | 0.17 |
PDA | 311 (46%) | 62 (39%) | 0.12 |
PDA ligation | 55 (8%) | 15 (9%) | 0.58 |
Mechanical ventilation | 505 (79%) | 109 (73%) | 0.14 |
Mechanical ventilation [days] | 4 (1–10) | 4 (0–8) | 0.20 |
Bronchopulmonary dysplasia | 139 (21%) | 18 (11%) | 0.008 |
IVH > 2 | 46 (7%) | 8 (5%) | 0.42 |
Major brain injury | 61 (9%) | 10 (6%) | 0.27 |
ROP stage 3 or higher | 35 (5%) | 8 (6%) | 0.77 |
Proven sepsis | 171 (25%) | 32 (20%) | 0.18 |
Necrotizing enterocolitis | 18 (3%) | 2 (1%) | 0.30 |