Mood and anxiety disorders were less often substance-induced than not substance-induced (15% v. 32% and 4% v. 24%, respectively). In contrast, psychotic disorders were more often substance-induced than not (24% v. 5%). Most substance-induced disorders were MA-induced. A history of hallucinations was reported by 15% of subjects, and of delusions by 16%. Of non-substance-induced disorders, 6% reported bipolar disorder, 7% generalized anxiety disorder, 2% schizophrenia, and 12% post-traumatic stress disorder.
