title: The association of neurofibromatosis type 1 and attention deficit hyperactivity disorder.
abstract: Some research and clinical observations have linked Neurofibromatosis Type 1 (NF-1) and Attention Deficit Hyperactivity Disorder (ADHD). In order to investigate whether ADHD is part of the phenotype of NF-1 or is a separate, unrelated disorder within families, we compared the ADHD status of children affected with NF-1 to that of their unaffected-NF-1 siblings and to that of their biological parents. Results of matched-pair analyses were calculated and revealed a significant with-in pair discordance, when comparing children with NF-1 and their siblings and when comparing children with NF-1 and their biological parents (in families with a sporadic, non-familial NF-1 child). These findings suggest that ADHD may occur as a component of the NF-1 phenotype.
authors.affiliation: Kennedy Krieger Institute, Baltimore, MD 21205, USA. koth@kennedykrieger.org
authors.forename: C W
authors.initials: CW
authors.lastname: Koth
authors.forename: L E
authors.initials: LE
authors.lastname: Cutting
authors.forename: M B
authors.initials: MB
authors.lastname: Denckla
mesh_terms: D000293:Adolescent; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000235:genetics*; D002648:Child; D005260:Female; D020022:Genetic Predisposition to Disease / Q000235:genetics; D006801:Humans; D008297:Male; D009456:Neurofibromatosis 1 / Q000175:diagnosis / Q000235:genetics*; D010641:Phenotype