Abstract
This study examined independent contributions of executive functioning (EF), state regulation (SR), and social risk factors to symptom dimensions of attention deficit hyperactivity disorder (ADHD) in two cohorts, which included 221 Norwegian children and 294 Finnish adolescents. Independent contributions of EF and SR were shown in the Norwegian cohort and EF contributed independently in the Finnish cohort. When controlling for each symptom dimension, cognitive functioning and social risk factors were differentially associated with inattention and hyperactivity/impulsivity symptoms. The results show the need to include both social risk factors and cognitive functioning to obtain a better understanding of ADHD symptoms.
Notes
Irma Moilanen is on the Eli Lilly Strattera Advisory Board, Lilly Foundation Finland. Additionally she has been sponsored by Jansen Cilag to attend AACAP Annual Meeting in 2007 and has presented a lecture on ADHD, sponsored by UCB in 2007. The other authors have no financial relationships to disclose.
*p < .05
**p < .01
***p > .00
†denote effects that were not significant (p > .05) when controlling for estimated intelligence.