| Variables | Number | Percent (%) |
| Developmental delay | 157 | 96.9 |
| Tone abnormalities | 66 | 40.7 |
| Quadriplegia | 42 | 25.9 |
| Microcephaly | 38 | 23.4 |
| Visual deficit | 22 | 13.5 |
| Hemiplegia | 9 | 5.5 |
| Hearing deficit | 7 | 4.3 |