The prevalence of<unk>  was estimated in the mid-2000s to be 1–2% of the general population and to occur three times more often in women than in men. However, the lifetime prevalence of<unk> , as defined in the DSM-IV, in a 2008 study was found to be 5.9% of the American population, occurring in 5.6% of men and 6.2% of women. The difference in rates between men and women in this study was not found to be statistically significant.<unk>  is estimated to contribute to 20% of psychiatric hospitalizations and to occur among 10% of outpatients. 29.5% of new inmates in the U.S. state of Iowa fit a diagnosis of<unk>  in 2007, and the overall prevalence of<unk>  in the U.S. prison population is thought to be 17%. These high numbers may be related to the high frequency of substance use and substance use disorders among people with<unk> , which is estimated at 38%.
Borderline personality disorder
Substance use disorder
Depressive personality disorder
Cluster B personality disorders
Organic personality disorder
Identity disorder
Dependent personality disorder
Post-traumatic stress disorder