Table 1.
Sociodemographic Characteristics and IQ of ASD, ADHD, ASD+ADHD, and Control Groups
| ASD (N = 43) | ASD+ADHD (N=31) | ADHD (N = 51) | Control (N = 56) | P Value | |
|---|---|---|---|---|---|
| Gender (N) | |||||
| Male | 36 | 26 | 46 | 43 | .323 |
| Female | 7 | 5 | 5 | 13 | |
| Age (years) | |||||
| Range | 5.6–8.6 | 7.05–9.5 | 7.2–9.8 | 7.6–9.5 | — |
| Mean ± SD | 7.11 ± 4.7 | 8.28 ± 3.3 | 8.54 ± 3.9 | 8.6 ± 3.46 | .26 |
| IQ (Mean ± SD) | 72.09 ± 36.7 | 59.03 ± 34.5 | 85.17 ± 19.7 | — | *ASD+ADHD vs ASD *ASD+ADHD vs ADHD |
| IQ level | |||||
| Borderline | 27% | 13% | 19% | — | — |
| Mild | 11% | 22% | 12% | — | — |
| Moderate | 9% | 16% | 5% | — | — |
| IQ measures | |||||
| WISC-III | 30% | 3% | 72% | — | — |
| WPPSI | 16% | 13% | 20% | — | — |
| Leiter-R | 54% | 84% | 8% | — | — |
Autism Spectrum Disorders (ASD), Attention-Deficit/Hyperactivity Disorder (ADHD), Intelligence Quotient (IQ), borderline (IQ 71-84), mild (IQ 50–70), moderate (IQ 35–49), Wechsler Intelligence Scale for Children (WISC-III), Wechsler Preschool and Primary Scale of Intelligence (WPPSI), Leiter International Performances Scale Revised (Leiter-R); *P <.005.