Table 1 Demographics of individuals at first or only time point
| Â | Autism | Control | Test statistic | p value |
|---|---|---|---|---|
N | 206 | 196 | Â | Â |
Sex m:f | 147:59 | 124:72 | χ2 = 2.6 | 0.1 |
Age mean (SD), years | 17.8 (5.2) | 17.3 (5.2) | χ2 = 393 | 0.5 |
IQ mean (SD) | 101 (20) | 105 (18) | χ2 = 188 | 0.05 |
Timepoint t1:t2 | 166:40 | 149:47 | χ2 = 1 | 0.3 |
Site | Â | Â | Â | Â |
Cambridge | 14 | 14 | χ2 = 9 | 0.06 |
KCL | 74 | 67 | χ2 = 9 | 0.06 |
Mannheim | 24 | 36 | χ2 = 9 | 0.06 |
Nijmegen | 81 | 57 | χ2 = 9 | 0.06 |
Utrecht | 13 | 22 | χ2 = 9 | 0.06 |