| Parameter | Group 1 (mild) “n = 929” | Group II (moderate/severe) “n = 186” | P value | ||
| No. | % | No. | % | ||
| Prematurity | 84 | 9.0 | 24 | 12.9 | 0.046* |
| IUGR | 65 | 7.0 | 20 | 10.8 | 0.107 |
| Low Apgar score (1 minute) | 81 | 8.7 | 22 | 11.8 | 0.034* |