| Center No. |
Clinical features |
Prevalence in patients [%] |
Prevalence in controls |
Ref |
| 1 |
Mental retardation and/or multiple congenital abnormalities (MR/MCA) |
9/1576
[0.57%] |
- |
Doornbos et al.16 |
| 2 |
Mental retardation (MR) |
1/64
[1.5%] |
- |
Hirschfeldova et al.25 |
| 3 |
Subjects referred for microarray analysis (behaviour/neurological problems or developmental delay) |
69/17 000
[0.41%] |
- |
Burnside et al.28 |
| 4 |
Schizophrenia or
bipolar disorder and idiopathic epilepsy |
0/315 |
1/191
[0.5%] |
Stewart et al.36 |
| 5 |
Idiopathic general epilepsies (IGE) |
12/1234
[1%] |
6/3022
[0.2%] |
De Kovel et al.29 |
| 6 |
Childhood absence epilepsy (CAE) |
3/198 [1.5%] |
0/400 |
Jiang et al.37 |
| 7 |
Amyotrophic lateral sclerosis |
15/4434[0.34%] |
15/14618[0.1%] |
Blauw et al.38 |
| 8 |
Spastic paraplegias (SPG) |
2/143
[1.4%] |
- |
Present study |
