General population |
Rural | 7% | CD, ED |
Rutter et al 1970
|
Urban | 18% | All types |
Gillberg 1995
|
Mixed UK 5–15 years | 8% | All types | Emerson 2002 |
Intellectual disabilities (mental retardation) |
All levels | 39% | 9.5% ED, 25% CD | Emerson 2002 |
| 40% | All types | Einfeld and Tonge 2000 |
Mild | 12% | Autism spectrum |
Nordin and Gillberg 1996
|
Severe | 64% | All types | Gillberg et al 1986 |
| 30% | Autism spectrum |
Nordin and Gillberg 1996
|
Cerebral palsy | 24% | All types |
Rutter et al 1970
|
With mental retardation | 11% | Autism spectrum | Nordin and Gillberg 1996 |
Hemiplegia | 61% | All types | Goodman 1998 |
| | ED 25%, CD 34% | |
| | ASD 3% | |
Speech language disorders | 50% | All types, CD | Cantwell and Baker 1985 |
Epilepsy | 29–58% | All types | Rutter et al 1970 |
With mental retardation | 44% | Autism spectrum | Steffenburg 1996 |
| 12% | ADHD | Steffenburg 1996 |
Deficits in attention motor control and perception (DAMP) | 69% | All types | Gillberg and Rasmussen |