The descriptive epidemiology of DSM IV Adult ADHD in the World Health Organization World Mental Health Surveys
AbstractWe previously reported on the cross national epidemiology of ADHD from the first 10 countries in the WHO World Mental Health (WMH) Surveys. The current report expands those previous findings to the 20 nationally or regionally representative WMH surveys that have now collected data on adult ADHD. The Composite International Diagnostic Interview (CIDI) was administered to 26,744 respondents in these surveys in high upper middle and low /lower middle income countries (68.5% mean response rate) Current DSM IV/CIDI adult ADHD prevalence averaged 2.8% across surveys and was higher in high (3.6% and upper middle (3.0% than low /lower middle (1.4% income countries. Conditional prevalence of current ADHD averaged 57.0% among childhood cases and 41.1% among childhood subthreshold cases. Adult ADHD was significantly related to being male, previously married, and low education. Adult ADHD was highly comorbid with DSM IV/CIDI anxiety, mood, behavior, and substance disorders and significantly associated with role impairments (days out of role, impaired cognition, and social interactions) when controlling for comorbidities. Treatment seeking was low in all countries and targeted largely to comorbid conditions rather than to ADHD. These results show that adult ADHD is prevalent, seriously impairing, and highly comorbid but vastly under recognized and undertreated across countries and cultures.
ADHD Attention Deficit and Hyperactivity Disorders