DALY for<unk>  per 100,000 inhabitants in 2004.<unk>  affects around 0.3–0.7% of people at some point in their life, or 21 million people worldwide as of 2011 (about one of every 285). By using precise methods in its diagnosis and a large, representative population,<unk>  seems to occur with relative consistency over time during the last half-century. While it is claimed that<unk>  occurs at similar rates worldwide, its prevalence and incidence varies across the world, within countries, and at the local and neighborhood level. It causes approximately 1% of worldwide disability-adjusted life years (DALYs). The rate of<unk>  varies up to threefold depending on how it is defined.
Epidemiology of schizophrenia
Epidemiology of attention deficit hyperactive disorder
Epidemiology of suicide
Genetics of post-traumatic stress disorder
Prognosis of schizophrenia
Comparison of bipolar disorder and schizophrenia
Epidemiology of child psychiatric disorders
Disease model of addiction