Table 1.
Variable | Mean (SD) | % |
---|---|---|
Child characteristics | ||
Age (years) | 8.06 (1.2) | |
Sex (male) | 71 | |
WISC Verbal (scaled score) | 11.20 (3.9) | |
WISC Performance (scaled score) | 9.61(3.8) | |
Race/ethnicity | ||
Caucasian | 36.2 | |
African-American | 40.6 | |
Hispanic | 4.3 | |
Native American | 1.4 | |
Mixed | 7.2 | |
Other | 1.4 | |
Refused | 8.7 | |
ADHD Diagnosis | ||
Combined type | 78.9 | |
Inattentive type | 15.5 | |
Hyperactive/impulsive type | 5.6 | |
Comorbidity | ||
Oppositional defiant disorder | 47.9 | |
Conduct disorder | 19.7 | |
Medication status | ||
On medication | 65.8 | |
Not on medication | 34.2 | |
Mother characteristics | ||
Age | 38.6 (6.1) | |
Marital status | ||
Married | 71 | |
Divorced/separated/other | 29 | |
Average education level | 3 or more years of college, but did not receive a degree | |
Average total family income | $95,000–99,999 ($70,000–75,000) | |
Race/ethnicity | ||
Caucasian | 45.6 | |
African American | 45.6 | |
Hispanic | 7.4 | |
Other | 1.5 |
WISC Wechsler intelligence scale for children, 4th ed., DBD disruptive behavior disorders rating scale, ADHD attention deficit/hyperactivity disorder, ODD oppositional defiant disorder, CD conduct disorder