| Diagnostic group | Comparison | |||
---|---|---|---|---|---|
22q | TD | t test | Pearson’s chi-square | Unequal variances (p) | |
Age (months) (mean (SD), N) | 128.8 (24.2), 53 | 120.5 (28.6), 46 | −1.548 |  | 0.125 |
Male sex (N (valid %a)) | 25 (47.2%) | 25 (54.3%) | Â | 0.580 | 0.476 |
Right handed (N (valid %)) | 38 (76.0%) | 39 (88.6%) | Â | 2.523 | 0.112 |
COMT Val158Met (N (valid %)) | 26 (55.3%) | N/A | Â | Â | Â |