It is also important to note that the mental disorder of psychosis is extremely rare, with about 3 in every 100 people experiencing a psychotic episode in their lifetime. The onset of psychosis, or similar disease processes like schizophrenia, usually begin in an individualâs late teens to early twenties.
1 Nationwide, 79% of undocumented immigrants are from Latin America a declining majority (52%) are from Mexico alone. 2  Most of the others are from Asia though Europe, Canada, and Africa account for hundreds of thousands of undocumented immigrants in the United States.
âInternational Migration and the Global Economic Order: An Overview.â Policy Research Working Paper, The World Bank, 2001.White, Michael J., Frank D. Bean, and Thomas J. Espenshade. âThe U.S. 1986 Immigration Reform and Control Act and Undocumented Immigration to the United States.Popula-tion Research and Policy Review, 9 (1990): 93-116.Woodrow, Karen.A., and Jeffrey S. Passel.International Migration and the Global Economic Order: An Overview.â Policy Research Working Paper, The World Bank, 2001.White, Michael J., Frank D. Bean, and Thomas J. Espenshade. âThe U.S. 1986 Immigration Reform and Control Act and Undocumented Immigration to the United States.