Psychosis is a heterogeneous psychiatric condition for which a multitude of risk and
protective factors have been suggested. This umbrella review aimed to classify the strength …

BackgroundConsidering existing knowledge on the relationship between certain
environmental factors and incidence rates of psychosis, we carried out a systematic review …

Background Prenatal and perinatal insults are implicated in the aetiopathogenesis of
psychotic disorders but the consistency and magnitude of their associations with psychosis …

Background The last comprehensive systematic review of the incidence of psychotic
disorders was published in 2004. New epidemiological data from different settings now …

Background Identifying the unique and shared premorbid indicators of risk for the
schizophrenia spectrum disorders (SSD) and affective psychoses (AP) may refine …

Objectives The purpose of this study is to provide an updated systematic review to identify
studies describing the prevalence of psychosis in order to explore methodological factors …

Twenty percent of individuals at clinical high risk for psychosis (CHR-P) develop the disorder
within 2 years. Extensive research has explored the factors that differentiate those who …

The validity and clinical utility of the concept of “clinical high risk”(CHR) for psychosis have
so far been investigated only in risk‐enriched samples in clinical settings. In this population …

Background We conducted a systematic review of incidence rates in England over a sixty-
year period to determine the extent to which rates varied along accepted (age, sex) and less …

(1) The consistency and magnitude of the prevalence of Clinical High-Risk for Psychosis
(CHR-P) individuals are undetermined, limiting efficient detection of cases. We aimed to …