METHOD Search Strategy
A systematic search of the following databases was conducted for the period January 1989 to May 2009: Medline, PsycINFO, EMBASE, CINAHL, NAZ (Database with Dutch nursing research articles), Cochrane Central Register of
Controlled Trials and Cochrane Database of Systematic Reviews. The following search terms were used: “early psychosis” or “first episode psychosis” or “first psychosis” or “psychotic disorder” and “nursing” or “nursing objectives” or “nursing problems” or “nursing diagnosis” or “nursing actions” or “nursing interventions” or “nursing outcomes” or “mental health nursing” or “psychiatric nursing.” In addition, we searched the databases using the Mesh terms “psychotic disorder” and “psychiatric nursing.” Furthermore, crossreferences judged to be relevant were added to the database and all references were checked for other relevant publications as well.