Article: New Data Suggest Bipolar Disorder May Affect Three Times More Americans Than Believed; Nationwide Study Presented at APA Shows 4 out of 5 Go Undiagnosed, Many More Misdiagnosed.

PHILADELPHIA -- Results of a new nationwide study show that three times as many people may suffer from bipolar disorder (also known as manic-depression) than previously estimated. Survey results from more than 85,000 Americans found that approximately one-third of those who screened positive for bipolar disorder had been misdiagnosed as having unipolar depression.(i) The data were presented today at the American Psychiatric Association's (APA) annual scientific meeting.

"These ground-breaking results may provide important new information about the prevalence of bipolar disorder in the U.S.," said Robert Hirschfeld, M.D., Titus Harris Chair, professor and chair, ...

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