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.
Tinggal di lingkungan urban pada waktu masa kanak-kanak atau masa dewasa secara konsisten tampaknya menaikkan risiko skizofrenia dua kali lipat, bahkan setelah memperhitungkan faktor penggunaan obat, kelompok etnis, dan ukuran dari kelompok sosial.