Characteristic | Overall | High-risk siblings, ASD | High-risk siblings, atypical | High-risk siblings, typical | Low-risk controls |
---|---|---|---|---|---|
Longitudinal analysis | |||||
Participants, n | 232 | 32 | 43 | 86 | 71 |
Sex, M/F† | 118/114 | 24/8 | 23/20 | 38/48 | 33/38 |
Age, mean ± SD | |||||
8 mo | 8.13 ± 1.22 | 8.03 ± 1.12 | 8.33 ± 1.06 | 8.24 ± 1.21 | 7.92 ± 1.35 |
14 mo | 14.48 ± 1.27 | 14.50 ± 1.32 | 14.56 ± 1.20 | 14.58 ± 1.29 | 14.31 ± 1.26 |
24 mo | 25.39 ± 3.06 | 24.84 ± 1.63 | 26.40 ± 4.25 | 25.72 ± 2.31 | 24.63 ± 3.30 |
36 mo | 38.39 ± 2.32 | 38.06 ± 1.90 | 38.19 ± 2.05 | 38.62 ± 2.29 | 38.39 ± 2.69 |
Multimodal analysis | |||||
Participants, n | 201 | 30 | 36 | 74 | 61 |
Sex, M/F‡ | 99/102 | 23/7 | 18/18 | 30/44 | 28/33 |
Age, mean ± SD | |||||
8 mo | 8.14 ± 1.22 | 8.03 ± 1.05 | 8.31 ± 1.09 | 8.27 ± 1.16 | 7.92 ± 1.41 |
ASD = autism spectrum disorder; SD = standard deviation.
↵* This table shows sex (count, n) and age by clinical outcome group. Data are reported separately for the samples included in the longitudinal and multimodal analyses.
↵† Significant difference of sex per clinical outcome: χ2 3 = 9.66, p = 0.022.
↵‡ Significant difference of sex per clinical outcome: χ2 3 = 11.55, p = 0.009.