Table 1 Demographics and clinical features
| Â | ASD | TDC | Statistics |
|---|---|---|---|
( n = 86) | ( n = 90) | Â | |
Age, mean (SD) | 15.0 (4.6) | 15.7 (6.0) | P = 0.348 |
Handedness, right (%) | 77 (89.5) | 84 (93.3) | P = 0.367 |
Intelligence quotient (IQ) | Â | Â | Â |
  Full-scale IQ | 102.9 (16.9) | 114.4 (10.7) | P < 0.001 |
  Verbal IQ | 104.3 (17.3) | 114.6 (9.6) | P < 0.001 |
  Performance IQ | 102.6 (17.4) | 112.4 (12.8) | P < 0.001 |
Autism Diagnostic Interview-Revised | Â | Â | |
  Social | 20.4 (5.5) | - | - |
  Communication | 14.9 (4.6) | - | - |
  Repetitive and stereotyped behaviors | 7.3 (2.7) | - | - |