IQ at school age related to US and MRI groups
| US | Group 1, n = 96 | Group 2, n = 89 | p for difference 1–2 | Group 3, n = 36 | p for difference 1–3 | All, n = 221 |
|---|---|---|---|---|---|---|
| IQ mean (SD) | 102 (13) | 101 (13) | 94 (18) | 100 (14) | ||
| Min–max | 74–135 | 65–129 | 0.39 | 56–138 | 0.005 | 56–138 |
| IQ>85, n | 85 | 77 | 23 | 185 | ||
| IQ⩽85, n | 11 | 12 | 0.68 | 13 | 0.001 | 36 |
| MRI | Group 1, n = 87 | Group 2, n = 104 | p for difference 1–2 | Group 3, n = 30 | p for difference 1–3 | All, n = 221 |
|---|---|---|---|---|---|---|
| IQ mean (SD) | 104 (13) | 100 (13) | 91 (16) | 100 (14) | ||
| Min–max | 77–138 | 65–135 | 0.026 | 56–126 | <0.0001 | 56–138 |
| IQ>85, n | 80 | 88 | 17 | 185 | ||
| IQ⩽85, n | 7 | 16 | 0.12 | 13 | <0.0001 | 36 |