Table 1.
Diagnostic Information by Group
| Comparison | ADHD/I | ADHD/C | |||
|---|---|---|---|---|---|
| Variable | (n = 20) | (n = 17) | (n = 43) | F | t result |
| Age diagnosed with ADHD (years) | 8.2 (0.9) | 7.3 (2.3) | 1.88 | ||
| DSM-IV attention | 0.5 (1.1) | 6.2 (2.6) | 7.3 (1.9) | 89.60*** | a |
| DSM-IV hyperactivity | 0.3 (0.6) | 1.5 (1.5) | 5.5 (2.4) | 61.80*** | b |
| DSM-IV oppositional/defiant | 0.2 (0.4) | 1.1 (1.3) | 3.3 (2.2) | 26.04*** | b |
| Connors oppositionality | 42.8 (4.0) | 50.4 (8.3) | 61.5 (12.0) | 26.77*** | b |
| Connors cognitive problems/inattention | 45.1 (3.9) | 71.5 (9.3) | 72.9 (8.6) | 91.62*** | a |
| Connors hyperactivity | 47.8 (5.3) | 53.1 (11.6) | 76.9 (10.3) | 78.02*** | b |
| Connors ADHD total | 44.7 (3.4) | 68.5 (8.5) | 74.7 (6.6) | 149.62*** | c |
| CBCL aggression | 51.1 (4.1) | 54.4 (5.9) | 62.4 (9.7) | 15.93*** | b |
| CBCL delinquency | 51.5 (2.9) | 53.2 (5.7) | 58.9 (8.3) | 9.65*** | b |
*
Note. p< .05,
**
p< .01,
***
p< .001.
ADHD/I = ADHD inattentive. ADHD/C = ADHD combined. DSM-IV scores based on semistructured interview.
a
Comparison significantly different from 2 ADHD groups.
b
ADHD/C significantly different from comparison and ADHD/I groups.
c
Comparison significantly different from ADHD/I, and ADHD/I significantly different from ADHD/C.