Who Is Affected by Bipolar I Disorder ?
- Bipolar I Disorder affects approximately 1% of the population
- The average age of onset for Bipolar I Disorder is 20 years for both men and women
- An equal number of men and women develop Bipolar I Disorder , and it affects all races and ethnic groups equally
- First-degree relatives of those with Bipolar I Disorder are more likely to have Bipolar I Disorder


