Mania and bipolar depression: complementing not opposing poles-a post-hoc analysis of mixed features in manic and hypomanic episodes.

Background: Depending on the classification system used, 5-40% of manic subjects present with concomitant depressive symptoms. This post-hoc analysis evaluates the hypothesis that (hypo)manic subjects have a higher burden of depression than non-(hypo)manic subjects.

Methods: Data from 806 Bipolar I or II participants of the Stanley Foundation Bipolar Network (SFBN) were analyzed, comprising 17,937 visits.

The Hypomania Checklist-32 and the Mood Disorder Questionnaire as screening tools--going beyond samples of purely mood-disordered patients.

Background: Bipolar disorders are often not recognized. Several screening tools have been developed, e.g.