Background Comorbidity is highly prevalent between substance use disorders (SUDs) and
schizophrenia. This systematic review and meta-analysis estimated prevalence rates of …

The aim of this study was to analyse the effect of age at onset on the long‐term clinical,
social and global outcomes of schizophrenia through a systematic review and a meta …

The current management of patients with primary psychosis worldwide is often remarkably
stereotyped. In almost all cases an antipsychotic medication is prescribed, with second …

The American Psychiatric Association Practice Guideline for the Treatment of Patients With
Schizophrenia seeks to reduce these substantial psychosocial and public health …

Background Although the link between cannabis use and development of psychosis is well
established, less is known about the effect of continued versus discontinued cannabis use …

Cannabis is the third most used psychoactive substance worldwide. The legal status of
cannabis is changing in many Western countries, while we have very limited knowledge of …

Negative symptoms in schizophrenia may be classified as primary or secondary. Primary
negative symptoms are thought to be intrinsic to schizophrenia, while secondary negative …

Background Even low levels of substance misuse by people with a severe mental illness
can have detrimental effects. Objectives To assess the effects of psychosocial interventions …

Objective: Cannabis consumption produces psychopathology, in some cases psychotic
episodes, which are of our interest in this work. However, the relationship between cannabis …

Various environmental exposures have been associated with psychosis spectrum disorder.
However, the role of gender in this association has received little attention. Therefore, we …