Table 1 Demographic data and IQ profiles of probands, unaffected siblings (US), and typically developing controls (TD)
Group | Autism(n = 122) | AS(n = 77) | US of autism(n = 122) | US of AS(n = 77) | TD(n = 196) | ||
|---|---|---|---|---|---|---|---|
x 2, F | P | ||||||
Male (%) | 108 (88.5%) | 70 (90.9%) | 61 (50.0%) | 38 (49.4%) | 129 (65.8%) | 73.49 | <.001 |
Age: mean ± SD (age range) | 10.4 ± 2.5 (6.0–16.0) | 11.5 ± 2.9 (6.0–18.0) | 10.6 ± 3.2 (6.0–18.0) | 10.7 ± 3.0 (6.0–17.0) | 11.1 ± 2.9 (7.0–18.0) | 2.25 | 0.063 |
IQ profiles | |||||||
Verbal IQ | 88.18 ± 23.82 | 109.04 ± 12.78 | 105.36 ± 14.38 | 111.03 ± 9.70 | 112.13 ± 11.18 | 44.77 | <.001 |
Performance IQ | 95.63 ± 20.62 | 105.68 ± 15.17 | 107.39 ± 15.26 | 106.76 ± 12.81 | 110.89 ± 13.04 | 17.48 | <.001 |
Full-scale IQ | 91.11 ± 21.83 | 107.97 ± 12.86 | 106.61 ± 14.44 | 109.57 ± 10.41 | 112.44 ± 11.37 | 36.85 | <.001 |