Thirty-seven percent of alcohol abusers and fifty-three percent of drug abusers also have at least one serious mental illness. Of all people diagnosed as mentally ill, 29 percent abuse either alcohol or drugs.
| Psychiatric Disorder | Increased Risk For Substance Abuse |
| Antisocial personality disorder |
|
| Manic episode |
|
| Schizophrenia |
|
| Panic disorder |
|
| Major depressive episode |
|
| Obsessive-compulsive disorder |
|
| Phobias |
|