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Mean developmental age in months according to Vineland Adaptive Behavior Scales (VABS)
| Full cohort (n = 92) | Range in full cohort | 18–29 years (n = 47) | 30–39 years (n = 24) | 40–49 years (n = 14) | 50–59 years (n = 3) | >60 years (n = 4) | |
|---|---|---|---|---|---|---|---|
| Communication | 12.5 | 4–30 | 12.6 | 12.0 | 12.9 | 20.3 | 7.0 |
| Daily living skills | 19.0 | 6–59 | 18.8 | 17.6 | 21.4 | 35.0 | 9.3 |
| Socialization | 12.3 | 2–52 | 12.4 | 11.3 | 11.9 | 28.0 | 7.8 |
| Motor skills | 17.8 | 1–37 | 18.6 | 16.9 | 17.8 | 24.3 | 9.3 |
