| Parameters | Outcome | ||
| Alive n (%) | Dead n (%) | ||
| Respiratory support | CPAP | 29(96.7) | 1(3.3) |
| Mechanical ventilation | 18(60) | 12 (40) χ2=11.88,p=0.001† | |
| MgSO4 administration (hours) | Alive n (%) | Dead n (%) | |
| ≤ 6 | 42(84.0) | 8(16.0) | |
| >6 – 24 | 18(81.8) | 4 (18.2) | |
| > 24 -72 | 18(81.8) | 4 (18.2) χ2=0.79, p=0.994 | |
| >72 | 5(83.3) | 1 (16.7) |