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Characteristics of Regression (n=18)
| ADI-R Skill Loss | n | % | Males | Females | Mean age of loss (mo.) | Median age of loss (mo.) |
|---|---|---|---|---|---|---|
| Motor skills | 10 | 56 | 5 | 5 | 95 | 90 |
| Self-help skills | 9 | 50 | 5 | 4 | 49 | 36 |
| Language | 6 | 33 | 2 | 4 | 39 | 40 |
| Social engagement and responsiveness | 6 | 33 | 4 | 2 | 63 | 63 |
| Purposive hand movements | 5 | 28 | 2 | 3 | 80 | 96 |
| Constructive or imaginative play | 4 | 22 | 1 | 3 | 48 | 30 |
