Table 2.
Mental disorders targeted in the excluded articles (organised according to the DSM)
| Mental disorder | Frequency |
|---|---|
| Any mental disorders, (possibly) including heterogeneous conditions (specified or unspecified) | 8 |
| Developmental disorders (or delays/disabilities)a | 21 |
| Intellectual disabilitiesa | 24 |
| Communication disorders (specific language impairments, speech impairments) | 3 |
| Autism Spectrum Disorder | 56 |
| Attention-Deficit/Hyperactivity Disorder | 23 |
| Specific learning disorders | 2 |
| Motor Disorders | 1 |
| Schizophrenia | 2 |
| Bipolar disorder | 3 |
| Obsessive-Compulsive Disorder | 1 |
| Eating disorders | 1 |
| Enuresis | 3 |
| Oppositional Defiant Disorder | 2 |
a
This term was not applied uniformly in the different studies and did often not correspond to particular ICD/DSM categories (i.e., some studies included a variety of very heterogeneous conditions).