Adults (n = 805) seeking outpatient psychiatric care completed the Adult ADHD Self-Report Scale (ASRS) and measures of impairment and co-occurring psychopathology as part of a measurement-based care initiative. Diagnostic indicators of ADHD (i.e., formal diagnosis and/or medication treatment) were recorded from the electronic medical record (EMR). Agreement between screening positive for ADHD and EMR indicators for the diagnosis was explored, and clinical characteristics of adults identified with ADHD using these indicators were examined. Lastly, the contribution of ADHD to functional impairment was examined, controlling for the contribution of other demographic and psychiatric comorbidities. In the full sample, 54.78% of adults screened positive for ADHD based on the ASRS, and using EMR indicators, only 11.93% of adults were identified with ADHD. Agreement emerged between self-reported ADHD and ADHD EMR indicators, although adults screening positive for ADHD generally reported greater psychiatric complexity relative to adults identified with ADHD in the EMR. ADHD was associated with clinical impairment even when controlling for other psychiatric comorbidities. The considerable difference in prevalence of ADHD based on self-report screening versus EMR indicators suggests that ADHD may be overlooked in adult psychiatric care. Findings point to the importance of assessing adult ADHD in routine psychiatric care.
Keywords: Adult ADHD; Attention-deficit/hyperactivity disorder; Outpatient.
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