Table 1.
Demographics and clinical scores (mean (standard deviation)) for children with ASD
| Overall | Boys | Girls | Sex difference | |
|---|---|---|---|---|
| Number | 65 | 49 | 16 | 33 more boys |
| Age in years | 9.96 (2.05) | 9.73 (2.16) | 10.66 (1.55) | Z = 1.60, p = 0.10 |
| DAS-II GCA | 105 (14) | 106 (14) | 104 (13) | Z = −0.07, p = 0.95 |
| Verbal | 107 (14) | 107 (14) | 106 (15) | Z = −0.35, p = 0.73 |
| Nonverbal | 106 (14) | 106 (14) | 105 (14) | Z = −0.24, p = 0.81 |
| SCQ lifetime | 19.82 (6.92) | 19.49 (7.46) | 20.81 (4.98) | Z = −1.01, p = 0.31 |
| VABS composite | 82.32 (13.22) | 83.19 (13.26) | 79.75 (13.18) | Z = −0.85, p = 0.39 |
| Communication | 87.75 (13.77) | 88.21 (14.14) | 86.38 (12.94) | Z = −0.31, p = 0.76 |
| Socialization | 77.95 (14.88) | 79.36 (15.48) | 73.81 (12.49) | Z = −1.74, p = 0.08 |
| ADOS-2 overalla | 6.49 (2.47) | 6.55 (2.38) | 6.31 (2.80) | Z = −0.18, p = 0.85 |
| Social affect | 6.29 (2.42) | 6.29 (2.38) | 6.31 (2.63) | Z = −0.008, p = 0.99 |
| RRB | 7.08 (2.54) | 7.27 (2.32) | 6.50 (3.14) | Z = −0.43, p = 0.67 |
Sex differences were assessed via nonparametric Mann-Whitney U tests. ADOS scores represent calibrated severity scores (comparison scores). Two male participants are missing Vineland Adaptive Behavior Scales (VABS) scores. RRB = repetitive behaviors and restricted interests
aCalibrated severity scores of 4 are equivalent to a raw score of 7 (ASD cut-off) and severity scores of 6 are equivalent to a raw score of at least 9 (autism cut-off) on the ADOS-2