Table 1.
Group demographics for the full ADHD− and TD samples, as well as subgroups selected for age and sex matching with the ADHD+ group
|
Samples |
Subgroups |
||||
|---|---|---|---|---|---|
| ADHD− | TD | ADHD− | ADHD+ | TD | |
| n | 50 | 50 | 26 | 26 | 26 |
| Female | 28 (14) | 28 (14) | 23.1 (6) | 23.1 (6) | 23.1 (6) |
| Handedness (R) | 86 (43) | 90 (45) | 84.6 (22) | 76.9 (20) | 96.2 (25) |
| Race | |||||
| White | 66 (33) | 62 (31) | 69.2 (18) | 88.5 (23) | 73.1 (19) |
| Black/African American | 12 (6) | 12 (6) | 11.5 (3) | 3.8 (1) | 11.5 (3) |
| Asian | 0 (0) | 6 (3) | 0 (0) | 0 (0) | 3.8 (1) |
| Other/multiracial | 18 (9) | 20 (10) | 15.5 (4) | 7.7 (2) | 11.5 (3) |
| Hispanic/Latino | 18 (9) | 6 (3) | 23.1 (6) | 15.4 (4) | 7.7 (2) |
| Age, mo | 67.70 ± 14.66 | 67.76 ± 14.76 | 74.50 ± 10.38 | 74.88 ± 9.71 | 74.81 ± 10.12 |
Values are percentages of total group, with the raw number in parentheses; age is expressed as mean ± SD. ADHD−, mediation-naive attention-deficit/hyperactivity disorder (ADHD) group; TD, typically developing control group; ADHD+, stimulant-treated ADHD group after 24-h medication washout.