Late-onset schizophrenia: do recent studies support categorizing LOS as a subtype of schizophrenia?

Purpose Or Review: To review recent literature about late-onset schizophrenia (LOS): schizophrenia with onset between ages 40 and 60 years. New findings are presented in the context of the previous literature.

Recent Findings: Newer studies continue to suggest that early-onset schizophrenia (EOS) and LOS share fundamental clinical features (i.