Table 1.
Children | Parents | ||
---|---|---|---|
Sample size (N) | 340 | 191 | |
Age in years (mean, SD) | 11.07 (3.4) | 44.3 (5.5) | |
Gender, Males (N, %) | 195 (57%) | 96 (50%) | |
DRD4 status -7R/ not 7 | 65/144 | 43/116 | |
Psychiatric diagnoses (lifetime) | |||
ADHD | 304 (88%) | 80 (42%) | |
Combined Type | 174 (51%) | 26 (14%) | |
Inattentive type | 117 (34%) | 47 (25%) | |
Hyperactive-Impulsive type | 13 (4%) | 7 (3%) | |
Anxiety | 58 (17%) | 35 (18%) | |
Mood | 50 (15%) | 82 (43%) | |
ODD/CD | 134 (39%) | 21 (11%) | |
Family level variables | |||
N_families | 132 | ||
SES (1=lowest, 5=highest) | 3.5 (1.8) | ||
Ethnicity | |||
Caucasian/non-Hispanic | 72% | ||
Caucasian/Hispanic | 8% | ||
African-American | 3% | ||
Other, Mixed | 13% |
Note. DRD4=Dopamine Receptor D4 gene, 7R=7-repeat allele, ADHD=Attention-Deficit Hyperactivity Disorder, ODD=Oppositional Defiant Disorder,CD= Conduct Disorder, SES=Socioeconomic Status using Hollingshead scale