Living in an urban environment during childhood or as an adult has consistently been found to increase the risk of schizophrenia by a factor of two, even after taking into account drug use, ethnic group, and size of social group.
Život u urbanom okolišu tijekom djetinjstva ili odrasle dobi redovito se pokazuje kao povećan čimbenik rizika za razvoj shizofrenije, s faktorom povećanja od dva puta, čak i nakon uzimanja u obzir konzumiranja droga, etničke pripadnosti, te veličine socijalne grupe.