Abstract
Objective: Using an adoption study design, the authors addressed the issue of genetics in attention-deficit hyperactivity disorder (ADHD). Method: This study examined the rates of ADHD and associated disorders in the first-degree adoptive relatives of 25 adopted probands with ADHD and compared them with those of the first-degree biological relatives of 101 nonadopted probands with ADHD and 50 nonadopted, non-ADHD control probands. Results: Six percent of the adoptive parents of adopted ADHD probands had ADHD compared with 18% of the biological parents of nonadopted ADHD probands and 3% of the biological parents of the control probands. Conclusion: Results of this study lend support to the hypothesis that ADHD has a genetic component.
Original language | English |
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Pages (from-to) | 1432-1437 |
Number of pages | 6 |
Journal | Journal of the American Academy of Child and Adolescent Psychiatry |
Volume | 39 |
Issue number | 11 |
DOIs | |
State | Published - 2000 |
Externally published | Yes |
Keywords
- Adoption
- Attention-deficit hyperactivity disorder
- Family study