Table 1.
Demographic participant details grouped by familial risk status, and ASD symptoms at 18 months.
| Familial Risk (N=36) | Low Risk (N=29) | P Valuea | ASD+ (N=14) | ASD− (N=51) | P Valuea | |
|---|---|---|---|---|---|---|
| Sex | 13 f | 11 f | .54 | 2 | 22 | 0.60 |
| n female (% female) | (36.1%) | (37.9%) | (14.3%) | (43.1%) | ||
| Race n (%) | ||||||
| White | 21 (58.3%) | 18 (62.1%) | .21 | 4 (28.6%) | 35 (68.6%) | .01* |
| More than one race | 9 (25%) | 10 (34.5%) | 6 (42.9%) | 13 (25.5%) | ||
| Asian/Black/Pacific Islander | 6 (16.7%) | 1 (3.4%) | 4 (28.6%) | 3 (5.9%) | ||
| Ethnicity n (%) | ||||||
| Hispanic | 16 (44.4%) | 4 (13.8%) | .01* | 5 (35.7%) | 15 (29.4%) | .65 |
| Non-Hispanic | 20 (55.6%) | 25 (86.2%) | 9 (64.3%) | 36 (70.6%) | ||
| Maternal Education n (%) | ||||||
| Some college or less | 2 (6.9%) | 2 (6.9%) | .756 | 2 (14.3%) | 2 (3.9%) | .20 |
| College Degree and above | 28 (77.8%) | 24 (82.8%) | 9 (64.3%) | 43 (84.3%) | ||
| Unreported | 6 (16.7%) | 3 (10.3%) | 3 (21.4%) | 6 (11.8%) | ||
|
Precise 3 Month EEG age Mean (SD), Range |
3.18 (0.35), 2.57–3.90 | 3.17 (0.32), 2.63–4.13 | .87 | 3.05 (.23), 2.57–3.43 | 3.21 (.36), 2.63–4.13 | .117 |
|
18 Month MSEL Verbal T-score Mean (SD), Range |
43.39 (9.61), 21–63.5 | 49.07 (10.63), 25–66 | .030* | 31.75 (5.82), 21–40.50 | 49.95 (7.43), 35.5–66 | <.001* |
|
18 Month MSEL Non-verbal T-score. Mean (SD), Range |
46.07 (7.51), 24.5–64 | 51.54 (9.08), 25–66 | .011* | 40.96 (9.70), 24.5–59.5 | 50.65 (7.02), 34–66 | <.001* |
|
18 Month ADOS-T Total Score Mean (SD), Range |
7.17 (5.12), 1–18 | 5.21 (4.44), 0–18 | .11 | 14.28 (2.67), 10–18 | 4.09 (2.46), 0–9 | <.001* |
|
18Month ADOS-T Total Score >10 n >10 (%>10) |
11 (30.6%) | 3 (10.3%) | .07 | |||
a
Group differences assessed using independent samples t-tests or chi-square analyses.