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Multimodal treatment study of ADHD (MTA) and Halperin sample characteristics.
| MTA sample (n = 579) | Halperin sample (n = 98) | |
|---|---|---|
| Age, years | 8.5 ± 0.8 | 8.6 ± 0.32 |
| Male | 465 (80.3) | 75 (76.1) |
| Female | 114 (19.7) | 23 (23.9) |
| White | 353 (61) | 58 (59.4) |
| Nonwhite | 226 (39) | 40 (40.6) |
| High blood pressure | 67 (12.5) | 4 (4.2) |
| No. tobacco | 132 (23.9) | 26 (27.4) |
Data are shown as mean ± SD or n (%).
