Table 1.
Subject characteristics
| Characteristic | PDD (n = 19) | Controls (n = 19) | P value |
|---|---|---|---|
| Age (months) (mean ± SD) |
158.84 ± 21.48 |
157.42 ± 23.81 |
0.848 |
| Full IQ (mean ± SD) |
95.95 ± 12.83 |
97.32 ± 9.48 |
0.711 |
| Verbal IQ (mean ± SD) |
92.96 ± 13.54 |
97.21 ± 12.88 |
0.652 |
| Performance IQ (mean ± SD) |
95.26 ± 13.54 |
97.84 ± 7.24 |
0.880 |
| Gender (n (%)) |
|
|
|
| Male |
17(89.5) |
17(89.5) |
|
| Female |
2(10.5) |
2(10.5) |
|
| Handedness (n (%)) |
|
|
|
| Right-handed |
16(84.2) |
16(84.2) |
|
| Left-handed |
2(10.5) |
2(10.5) |
|
| Ambidextrous | 1(5.3) | 1(5.3) |
The demographic and clinical characteristics of the study subjects are shown. PDD pervasive developmental disorders, SD standard deviation, IQ intelligence quotient.