TABLE 1.
Demographic characteristics of TD children and autistic children
| Group means ranges | Chi‐square/t value | p value | ||
|---|---|---|---|---|
| TD (n = 200) | Autism (n = 35) | |||
| Sex (males/females) | 104/96 | 28/8 | 8.225 | 0.003 |
| Age (months; mean [SD]) |
78.7 (2.9) 72–83 |
80.4 (4.5) 72–87 |
0.890 | 0.104 |
| Verbal IQ (mean [SD]) |
89.3 (6.0) 80–121 |
91.2 (8.7) 82–103 |
1.279 | 0.202 |
| Performance IQ (mean [SD]) |
91.5 (8.4) 81–121 |
92.6 (10.3) 80–113 |
0.599 | 0.549 |
| Socioeconomic status (maternal education in yeas) |
10.2 (3.3) 5–18 |
9.7 (3.6) 6–18 |
0.679 | 0.498 |