Depression in schizophrenia and early psychosis: implications for assessment and treatment

Summary Depression in schizophrenia has been a neglected field for some time, but much evidence exists as to the common occurrence of affective disturbance in so-called non-affective psychosis. Depression is related to poor outcome in terms of functional recovery, relapse rate and suicide, and there is increasing evidence that it also precedes the onset of first-episode psychosis for many individuals. This article reviews recent steps forward in the evidence base for depression in schizophrenia in terms of prevalence, importance, assessment and treatment implications, with the aim of providing useful information for practising psychiatrists.