| Variable | Cases | Controls | OR (95% CI) | P value | ||
| Yes n (%) | No n (%) | Yes n (%) | No n (%) | |||
| Perinatal asphyxia | 12 (19.7) | 46 (79.3) | 13 (10.7) | 109 (89.3) | 2.05 (87 - 4.82) | 0.099 |
| Low birth weight | 3 (4.9) | 55 (95.1) | 4 (13.3) | 118 (96.7) | 1.52 (0.19 - 5.03) | 0.650 |
| Neonatal infection | 4 (6.6) | 54 (93.4) | 8 (6.7) | 114 (93.4) | 1.00 (0.288 - 3.466) | 1.000 |
| Others | 2 (3.3) | 56 (96.7) | 5 (4.1) | 117 (96.0) | 1.23 (0.23 - 6.53) | 0.584 |