Delineating ADHD and bipolar disorder: A comparison of clinical profiles in adult women

- Symptom similarities between Adult ADHD with BD can result in diagnostic errors.
- Mood lability is seen in both ADHD and BD and does not discriminate the disorders.
- ADHD measures, but not BD measures, were able to distinguish ADHD from BD.
- A temporal component to symptom evaluation is needed to distinguish ADHD and BD.

ObjectiveOverlapping symptoms can make the diagnostic differentiation of attention-deficit/hyperactivity disorder (ADHD) and bipolar disorder (BD) challenging in adults using current clinical assessments. This study sought to determine if current clinical measures delineate ADHD from BD in adults, comparing relative levels of ADHD, BD and emotional lability (EL) symptoms.MethodsSixty adult women with ADHD, BD or controls were compared on self-report and interview measures for ADHD symptoms, mania, depression, EL, and impairment.ResultsADHD interview measures and self-ratings of ADHD symptoms best discriminated between ADHD and BD. Self-report measures of EL and depression showed non-specific enhancement in both clinical groups. BD-specific items may distinguish BD from ADHD if a retrospective time-frame is adopted.ConclusionsUsing measures which capture specific symptoms of ADHD and chronicity/episodicity of symptoms facilitates the delineation of ADHD from BD in adult women.