A systematic review cites an average global prevalence of 0.4%, and median rate of 0.7%, but this varies significantly - higher prevalence is found in developed vs.developing countries, and migrant vs. native populations - again suggesting that there is something about modern societies/cultures and being a stranger in them that increases a person’s risk for schizophrenia.
Schizophrenia Incidence & Prevalence: The dogma of the disease