Table 1.
Group comparison on the WISC-III Intelligence test.
| NF1 mean (SD) | S mean (SD) | TD mean (SD) | One-way ANOVA | ||||
|---|---|---|---|---|---|---|---|
| F | p value∗ | Post hoc tests§
NF1 < S |
Post hoc tests NF1 < TD |
||||
| Wechsler scale | |||||||
| Full-scale IQ | 98 (12) | 112 (8) | 111 (11) | 9.649 | ≤0.001 | p = 0.01 | p = 0.001 |
| VC | 98 (12) | 105 (14) | 106 (12) | 2.463 | 0.96 | n.s | n.s |
| PO | 101 (14) | 116 (7) | 113 (11) | 8.679 | 0.001 | p = 0.001 | p = 0.006 |
| FFD | 94 (12) | 108 (6) | 113 (11) | 15.316 | ≤0.001 | p = 0.02 | p ≤ 0.001 |
| PS | 98 (14) | 104 (12) | 107 (15) | 2.136 | 0.129 | n.s | n.s |
Legend. NF1: neurofibromatosis type 1; S: siblings; TD: typically developing children; VC: verbal comprehension; OP: perceptual organization; FFD: freedom from distractibility; PS: processing speed. ∗ p values of 0.05 or lower are considered significant. §Post hoc Bonferroni correction.