Table 1.
Descriptives for high risk and low risk groups and high risk group by 36 month outcome.
| LR controls | HR sibs |
|||
|---|---|---|---|---|
| Combined | HR-No ASD | HR-ASD | ||
| N (M, F) | N = 50 (21, 29) | N = 54 (21, 33) | N = 36 (10, 26) | N = 17 (11, 6) |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |
| Age 7 m | 7.38 (1.24) | 7.31 (1.20) | 7.17 (1.16) | 7.53 (1.23) |
| Age 14 m | 13.92 (1.33) | 13.68 (1.57) | 13.51 (1.24) | 13.94 (1.60) |
| Age 24 m | 23.87 (.68) | 23.92 (1.15) | 23.89 (1.15) | 24.00 (.97) |
| Age 36 m | 38.23 (3.05) | 37.66 (2.99) | 37.61 (3.36) | 37.76 (2.11) |
| 7 m ELC1 | 104.42 (11.31)a | 94.00 (12.88)a | 95.03 (10.69) | 92.13 (17.30)b |
| 14 m ELC1 | 106.11 (15.73)a | 97.40 (17.91)a | 102.11 (16.04)c | 89.18 (18.30)b |
| 24 m ELC1 | 116.02 (13.98)a | 102.25 (19.77)a | 104.25 (17.14) | 97.75 (24.74)b |
| 36 m ELC1 | 115.77 (16.25)a | 105.38 (21.52)a | 110.11 (15.87)c | 94.75 (28.51)b |
| 24 m ADOS CSS2 | – | 3.46 (2.32) | 2.75 (1.92) | 5.06 (2.41) |
| 36 m ADOS CSS2 | 2.85 (1.88) | 4.32 (2.62) | 3.42 (2.34) | 6.24 (2.14) |
| 36 m ADI social3 | – | 4.54 (5.33) | 2.22 (3.20) | 9.75 (5.54) |
| 36 m ADI communication3 | – | 4.44 (4.82) | 2.67 (3.46) | 8.44 (5.14) |
| 36 m ADI repetitive3 | – | 1.60 (2.02) | .69 (1.06) | 3.63 (2.22) |
1
Mullen Scales of Early Learning Early Learning Composite Standard Score.
2
ADOS: Autism Diagnostic Observation Schedule Calibrated Severity Score.
3
ADI: Autism Diagnostic Interview.
a
HR group < LR group, p < .01.
b
HR-ASD group < LR group, p < .05.
c
HR-ASD group < HR-No ASD group, p < .05.