Table 1.
Demographic characteristics: means and standard deviations within the four groups
| |
ADHD |
Healthy controls |
|
|
|||
|---|---|---|---|---|---|---|---|
|
Variable |
Boys
1
(
n
= 43) |
Girls
2
(
n
= 37) |
Boys
3
(
n
= 32) |
Girls
4
(
n
= 18) |
Group comparison |
Bonferroni
*
|
|
| F | P | ||||||
| Age (months) |
139.2 (23.2) |
149.4 (25.1) |
141.5 (22.6) |
148.5 (27.3) |
F (3,126) = 1.50 |
NS |
|
| Mother’s education (yrs) |
12.6 (2.3) |
12.9 (1.9) |
14.6 (2.5) |
14.6 (2.1) |
F (3,126) = 6.80 |
< .001 |
1 < 3,4; 2 < 3 |
| FSIQ (WASI)a) |
94.3 (13.2) |
96.4 (15.5) |
101.9 (12.7) |
107.1 (13.1) |
F (3,126) = 4.60 |
= .004 |
1,2 < 4 |
| Inattentionb) |
16.6 (5.8) |
15.0 (5.6) |
1.8 (2.1) |
1.4 (1.6) |
F(3,125) = 95.50 |
< .001 |
1,2 < 3,4 |
| Hyperactivity/ Impulsivityc) |
10.2 (6.5) |
10.1 (6.7) |
1.1 (1.3) |
0.8 (1.4) |
F (3,125) = 30.86 |
< .001 |
1,2 < 3,4 |
| CGASd) | 56.0 (8.4) | 59.3 (9.3) | t (78) = 2.82 | NS | |||
a)Full Scale IQ.
b)ADHD rating scale – IV.
c)ADHD rating scale – IV.
d)Children Global Assessment Scale.
*1 = ADHD Boys, 2 = ADHD Girls, 3 = HC Boys, 4 = HC Girls.