Table 1.
Classification of autism cases in the Early Markers for Autism study
| Autism spectrum disorder subgroups | Number of subjects |
|---|---|
| Total | 415 |
| Onset type | |
| Early onset | 299 |
| Regressive | 102 |
| Unknown | 14 |
| Intellectual disability | |
| Yes | 184 |
| No | 201 |
| Unknown | 30 |
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