What is the rate of incidence for bipolar I disorder?

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  1. Less than 4 percent of people in the United States experience a kind of bipolar disorder. Men and women are equally likely to be diagnosed with bipolar disorder. The manifestation of symptoms, however, does vary within the affected population; women are more likely to experience bipolar depression, while men are more likely to have manic episodes.

    Less than 4 percent of people in the United States experience a kind of bipolar disorder. Men and women are equally likely to be diagnosed with bipolar disorder. The manifestation of symptoms, however, does vary within the affected population; women... More
  2.  Sheri Van Dijk
     
    Sheri Van Dijk answered:

    In the 2009 CANMAT guidelines that outline treatment for mood and anxiety disorders, it's estimated that 1.0% of people experience bipolar I disorder; 1.1% experience bipolar II; and 2.4% of people have "subthreshold" bipolar - in other words, they have symptoms, but not enough to meet the diagnostic criteria for bipolar I or II.

    If you think you may have bipolar disorder, go to www.dbtforbipolar.com to complete the Mood Disorder Questionnaire, a screening tool that can tell you if you may have bipolar; and seek medical assistance to discuss your symptoms.

    More Related Answers from Sheri Van Dijk
    In the 2009 CANMAT guidelines that outline treatment for mood and anxiety disorders, it's estimated that 1.0% of people experience bipolar I disorder; 1.1% experience bipolar II; and 2.4% of people have "subthreshold" bipolar - in other words, they... More
  3. Dr. John R. Kelsoe
     
    This depends a bit on the study and the definition of bipolar I disorder. Generally, it is felt to affect about 1% of the population.
    More Related Answers from International Bipolar Foundation
    This depends a bit on the study and the definition of bipolar I disorder. Generally, it is felt to affect about 1% of the population. More