Background
Recent results from the Multimodal Treatment Study of ADHD (MTA) demonstrated impairments in several functioning domains in adults with childhood ADHD. The childhood predictors of these adult functional outcomes are not adequately understood.
Objective
To determine effects of childhood demographic, clinical and family factors on adult functional outcomes in individuals with and without childhood ADHD from the MTA cohort.
Methods
Regressions were used to determine associations of childhood factors (age range = 7–10 years) of family income, IQ, comorbidity (internalizing, externalizing and total number of non-ADHD diagnoses), parenting styles, parental education, number of household members, parental marital problems, parent-child relationships, and ADHD symptom severity with adult outcomes (mean age = 25) of occupational functioning, educational attainment, emotional functioning, sexual behavior, and justice involvement in participants with (n = 579) and without (n = 258) ADHD.
Results
Predictors of adult functional outcomes in ADHD include clinical factors such as baseline ADHD severity, IQ and comorbidity, demographic factors such as family income, number of household members and parental education, as well as family factors such as parental monitoring and parental marital problems. Predictors of adult outcomes were generally comparable for children with and without ADHD.
Conclusion
Childhood ADHD symptoms, IQ and household income levels are important predictors of adult functional outcomes. Management of these areas early on, through timely treatments for ADHD symptoms, and providing additional support to children with lower IQ and from households with low incomes, may assist in improving adult functioning.