| Description | Freq | Dental caries experience | p-value1 |
| Cerebral palsy | 34 | 7 | 0.14 |
| Down syndrome | 32 | 10 | >0.9 |
| Autism | 18 | 4 | 0.4 |
| Asymptomatic IQ | 16 | 7 | 0.2 |
| Epilepsy | 8 | 3 | 0.7 |
| Cretinism | 3 | 3 | 0.027 |
| Microcephaly | 3 | 3 | 0.027 |
| Low IQ O/A birth asphyxia | 3 | 0 | 0.6 |
| Low IQ O/A meningitis | 2 | 0 | >0.9 |
| Adhd | 1 | 0 | >0.9 |
| Total | 121 | 37 |
|