• An estimated 1-3% of the general population has bipolar disorder.
  • Bipolar disorder affects males and females at equal rates.
  • The peak age of onset of bipolar disorder is between the ages of 15 and 25.
  • Emil Kraeplin found that the average period of feeling 'well' after a mood episode is:
    • 4.3 years after the 1st episode
    • 2.8 years after the 2nd episode
    • 1.8 years after the 3rd episode
    • 1.7 years after the 4th episode
    • 1.5 years after the 5th episode
  • Some professionals recommend considering 5 factors for a diagnosis of bipolar disorder:
    • Age of onset
    • Course of symptoms
    • Family history
    • Response to treatment
    • Current signs and symptom

Source: ManicDepressive.org