Background
An ‘ethnic’ or ‘group’ density effect in psychosis has been observed, whereby the risk of psychosis in minority group individuals is inversely related to neighbourhood-level proportions of others belonging to the same group. However, there is conflicting evidence over whether this effect differs between minority groups and limited investigation into other moderators.
Aims
To conduct a comprehensive systematic review and meta-analysis of the group density effect in psychosis and examine moderators.