how often does adhd co-occur with bipolar disorder?

how often does ADHD co-occur with bipolar disorder?

  A sizeable minority of bipolar patients also meet diagnostic criteria for attention deficit hyperactivity disorder (ADHD). Unfortunately, having both conditions simultaneously can complicate or alter the clinical course of the other. That said, how often does ADHD co-occur with bipolar disorder? The exact percentage of co-occurring bipolar disorder (BPD)  and ADHD cases is not fully […]