Table 1.
Participant characteristics of this studya
| Characteristic | AMC group | Control group | Group differences |
|---|---|---|---|
| All participants | |||
| Age at Grade 6 (mean, SD) | 11.93 (0.51) | 11.95 (0.49) | t(110) = 0.24, p = 0.81 |
| Gender (boy, total) | (29, 61) | (23, 51) | χ2 = 0.07, p = 0.80 |
| Intelligence at Grade 1 (mean, SD) | 103 (14) | 103 (11) | t(110) = 0.07, p = 0.95 |
| Intelligence at Grade 6 (mean, SD) | 112 (14) | 109 (14) | t(110) = 1.10, p = 0.27 |
| Participants attending fMRI | |||
| Age at Grade 6 (mean, SD) | 11.83 (0.55) | 11.97 (0.54) | t(48) = 0.92, p = 0.36 |
| Gender (boy, total) | (14, 27) | (12, 23) | χ2 = 0.001, p = 0.98 |
| Intelligence at Grade 1 (mean, SD) | 103 (14) | 104 (16) | t(48) = 0.08, p = 0.94 |
| Intelligence at Grade 6 (mean, SD) | 112 (14) | 107 (16) | t(48) = 1.22, p = 0.23 |
| Motion at Grade 6 (mean FD, SD) | 0.16 (0.06) | 0.16 (0.05) | t(48) = 0.02, p = 0.99 |
aFD, Framewise displacement.