Table 1.
Demographics by syndrome group at child age three years (N=183)
| ASD (n = 12) | CP (n = 9) | DS (n = 10) | UDD (n = 37) | TD (n = 115) | F or Chi Square | |
|---|---|---|---|---|---|---|
| Child | ||||||
| Mean age (SD) at testing (mo.) | 35.6 (2.9) | 35.3 (3.0) | 35.1 (3.8) | 35.6 (2.8) | 34.8 (3.1) | F=0.60 |
| Gender (% boys) | 100.0 | 33.0 | 50.0 | 64.9 | 50.4 | 2 =14.05** |
| Race (%Caucasian) | 75.5 | 44.4 | 60.0 | 54.1 | 60.9 | 2 =2.59 |
| Siblings (% only child) | 50.0 | 33.3 | 40.0 | 27.0 | 30.4 | 2 =2.64 |
| Mean Bayley DQ Score (SD) | 57.6ac (8.7) | 57.6 ac (6.4) | 46.1a (8.7) | 63.8c (8.2) | 104.3b (11.9) | F=179.46*** |
| Mean CBCL Total T (SD) | 63.2a (10.8) | 58.8ac (10.1) | 51.2bc (11.1) | 54.8ac (10.2) | 50.5bc (9.9) | F=5.94*** |
| Mother and Family | ||||||
| Mother mean age (SD) | 35.5 (6.0) | 31.1 (5.8) | 34.6 (5.3) | 32.3 (7.1) | 34.1 (5.8) | F=1.33 |
| Mother grade in school (SD) | 15.6 | 13.4 | 16.3ac | 13.9b | 15.7a | F=5.72*** |
| Mother employed (%) | 58.3 | 44.4 | 30.0 | 59.5 | 61.7 | 2 = 4.59 |
| Mother married (%) | 83.3 | 55.6 | 90.0 | 78.4 | 87.8 | 2 =7.87 |
| Family income (% $50K+) | 50.0 | 33.3 | 50.0 | 40.5 | 58.8 | 2 =5.30 |
Note: ASD (Autism Spectrum Disorder); CP (Cerebral Palsy); DS (Down Syndrome); UDD (Undifferentiated Developmental Delay); TD (Typical Development)
Reading across rows, groups with different superscripts differed at p < .05 (Tukey statistic)