| Risk Factors | Correlation Coefficient | p-Value |
| Age | −1.293 | 0.009* |
| Sex | 0.596 | 0.043* |
| Place of Residence | 0.623 | 0.039* |
| Maternal Education | −0.080 | 0.835 |
| Social Class | 0.007 | 0.978 |
| Child’s Stage of Development | 0.401 | 0.047* |