| Patient Groups | Alive (%) | Dead (%) | χ2, p value |
| Perinatal asphyxia | |||
| Comparison group | 437 (71.5) | 174 (28.5) | χ2 5.762 |
| MgSO4 group | 83 (83) | 17 (17) | p= 0.016† |
| HIE | |||
| Comparison group | 241 (58.2) | 173(41.8) | χ2 14.144 |
| MgSO4 group | 63 (80.8) | 15(19.2) | p <0.0001† |
| HIE 3 | |||
| Comparison group | 68 (37) | 116(63) | χ2 4.881 |
| MgSO4 group | 15 (60) | 10(40) | p =0.027† |
| †Pearson χ2 | |||