BACKGROUND: To determine whether familial transmission is shared between autism spectrum disorders and attention-deficit/hyperactivity disorder, we assessed the prevalence, rates of comorbidity, and familial transmission of both disorders in a large population-based sample of children during a recent 7 year period. METHODS: Study participants included all children born to parents with the Kaiser Permanente Northwest (KPNW) Health Plan between 1 January 1998 and 31 December 2004 (n = 35,073). Children and mothers with physician-identified autism spectrum disorders (ASD) and/or attention-deficit/hyperactivity disorder (ADHD) were identified via electronic medical records maintained for all KPNW members. RESULTS: Among children aged 6-12 years, prevalence was 2.0% for ADHD and 0.8% for ASD; within those groups, 0.2% of the full sample (19% of the ASD sample and 9.6% of the ADHD sample) had co-occurring ASD and ADHD, when all children were included. When mothers had a diagnosis of ADHD, first born offspring were at 6-fold risk of ADHD alone (OR = 5.02, p < .0001) and at 2.5-fold risk of ASD alone (OR = 2.52, p < .01). Results were not accounted for by maternal age, child gestational age, child gender, and child race. CONCLUSIONS: Autism spectrum disorders shares familial transmission with ADHD. ADHD and ASD have a partially overlapping diathesis.
BACKGROUND: To determine whether familial transmission is shared between autism spectrum disorders and attention-deficit/hyperactivity disorder, we assessed the prevalence, rates of comorbidity, and familial transmission of both disorders in a large population-based sample of children during a recent 7 year period. METHODS: Study participants included all children born to parents with the Kaiser Permanente Northwest (KPNW) Health Plan between 1 January 1998 and 31 December 2004 (n = 35,073). Children and mothers with physician-identified autism spectrum disorders (ASD) and/or attention-deficit/hyperactivity disorder (ADHD) were identified via electronic medical records maintained for all KPNW members. RESULTS: Among children aged 6-12 years, prevalence was 2.0% for ADHD and 0.8% for ASD; within those groups, 0.2% of the full sample (19% of the ASD sample and 9.6% of the ADHD sample) had co-occurring ASD and ADHD, when all children were included. When mothers had a diagnosis of ADHD, first born offspring were at 6-fold risk of ADHD alone (OR = 5.02, p < .0001) and at 2.5-fold risk of ASD alone (OR = 2.52, p < .01). Results were not accounted for by maternal age, child gestational age, child gender, and child race. CONCLUSIONS:Autism spectrum disorders shares familial transmission with ADHD. ADHD and ASD have a partially overlapping diathesis.
Authors: Ovsanna T Leyfer; Susan E Folstein; Susan Bacalman; Naomi O Davis; Elena Dinh; Jubel Morgan; Helen Tager-Flusberg; Janet E Lainhart Journal: J Autism Dev Disord Date: 2006-10
Authors: Andrew S Rowland; Betty J Skipper; David L Rabiner; Fares Qeadan; Richard A Campbell; A Jack Naftel; David M Umbach Journal: J Child Psychol Psychiatry Date: 2017-08-12 Impact factor: 8.982
Authors: Sanam J Lalani; Tyler C Duffield; Haley G Trontel; Erin D Bigler; Tracy J Abildskov; Alyson Froehlich; Molly B D Prigge; Brittany G Travers; Jeffrey S Anderson; Brandon A Zielinski; Andrew Alexander; Nicholas Lange; Janet E Lainhart Journal: J Clin Exp Neuropsychol Date: 2017-10-26 Impact factor: 2.475