Table 1.
Summary and group comparison of participant demographics.
| Demographic | White | Black | Hispanic | F value |
|---|---|---|---|---|
| ASD (n = 195) | ||||
| n | 120 | 35 | 40 | |
| Mean (SD) age at CSBS-BS (months) | 21.07 (1.99) | 20.69 (1.64) | 24.88 (5.81) | 24.83** |
| Number (%) male | 100 (83.33) | 31 (88.57) | 34 (85.00) | |
| Number (%) female | 20 (16.67) | 4 (11.43) | 6 (15.00) | |
| Number (%) firstborn | 57 (47.50) | 14 (40.00) | 17 (42.50) | |
| Number (%) with global developmental delay | 68 (56.70) | 20 (57.10) | 23 (57.50) | |
| Number (%) with language delay | 32 (26.70) | 9 (25.70) | 16 (40.00) | |
| Age at ESAC (months) | ||||
| n | 109 | 29 | 39 | |
| M (SD) | 21.81 (4.51) | 21.16 (5.58) | 25.06 (6.26) | 6.82** |
| Parent's education (years) | ||||
| Mother | ||||
| n | 120 | 35 | 40 | |
| M (SD) | 15.03 (2.59) | 14.57 (2.13) | 13.45 (3.93) | 4.68* |
| Father | ||||
| n | 118 | 30 | 37 | |
| M (SD) | 14.58 (2.91) | 14.60 (2.50) | 12.73 (4.30) | 5.06* |
| Parent's age at child's birth (years) | ||||
| Mother | ||||
| n | 119 | 35 | 40 | |
| M (SD) | 31.04 (5.99) | 29.94 (6.55) | 29.50 (5.46) | 1.19 |
| Father | ||||
| n | 118 | 31 | 40 | |
| M (SD) | 34.22 (6.66) | 32.38 (6.64) | 31.75 (4.97) | 2.74 |
| Non-ASD (n = 169) | ||||
| n | 106 | 39 | 24 | |
| Mean (SD) age at CSBS-BS (months) | 20.23 (1.77) | 21.00 (3.10) | 23.75 (4.04) | 18.89** |
| Number (%) male | 68 (64.15) | 25 (64.10) | 15 (62.50) | |
| Number (%) female | 38 (35.85) | 14 (35.90) | 9 (37.50) | |
| Number (%) firstborn | 37 (34.91) | 17 (43.59) | 9 (37.50) | |
| Number (%) with global developmental delay | 15 (14.20) | 6 (15.40) | 6 (25.00) | |
| Number (%) with language delay | 29 (27.40) | 16 (41.00) | 9 (37.50) | |
| Age at ESAC (months) | ||||
| n | 101 | 28 | 21 | |
| M (SD) | 21.89 (4.86) | 22.93 (5.41) | 23.72 (4.97) | 1.42 |
| Parent's education (years) | ||||
| Mother | ||||
| n | 106 | 39 | 24 | |
| M (SD) | 15.55 (2.80) | 14.05 (2.10) | 10.54 (5.76) | 23.66** |
| Father | ||||
| n | 105 | 36 | 21 | |
| M (SD) | 15.43 (2.90) | 13.36 (2.86) | 10.10 (5.84) | 23.19** |
| Parent's age at child's birth (years) | ||||
| Mother | ||||
| n | 106 | 39 | 24 | |
| M (SD) | 31.61 (5.00) | 28.95 (6.96) | 28.75 (5.44) | 4.76* |
| Father | ||||
| n | 104 | 37 | 22 | |
| M (SD) | 33.65 (5.91) | 31.45 (8.56) | 30.52 (7.78) | 2.72 |
Note. ASD = autism spectrum disorder; CSBS-BS = Communication and Symbolic Behavior Scales Behavior Sample; ESAC = Early Screening for Autism and Communication Disorders.
*
p < .05.
**
p < .01.