Forethought in Youth with Attention Deficit/Hyperactivity Disorder: An fMRI Study of Sex-Specific Differences
Table 1
Age and IQ of participants with ADHD and typically developing youth (TD).
ADHD
Boys
Girls
Mean
SD
Min
Max
Mean
SD
Min
Max
Age
10
2.3
7
15
11
1.51
7
14
K-Bit_Voc
103
13.3
75
130
99
11.6
85
120
K-Bit_mat.
110
16.3
91
150
107
12.8
93
127
K-Bit_total
107
15.3
83
134
103
8
94
115
TD
Boys
Girls
Mean
SD
Min
Max
Mean
SD
Min
Max
Age
11
1.2
9
12
11
1.9
7
14
K-Bit_Voc
98
14.3
78
113
107
14.1
72
119
K-Bit_mat.
108
16.3
69
136
118
12.2
96
136
K-Bit_total
103
17.6
74
128
114
13.7
82
129
ANOVA
: Diagnosis
: Sex
: Group × Sex
Age
0.70
0.408
0.72
0.402
0.96
0.332
K-Bit_Voc
0.21
0.651
0.31
0.541
2.40
0.129
K-Bit_mat.
0.69
0.410
0.54
0.465
1.69
0.200
K-Bit_total
0.54
0.466
0.61
0.439
2.60
0.114
Note. K-Bit_Voc, Kaufman brief intelligence test_Vocabulary; K-Bit_mat., Kaufman brief intelligence test_Matrices; TD, typically developing youth; ADHD, youth with attention deficit and hyperactivity disorders. All s are two-tailed.
