Table 2.

Literature search strategy

Databases	Academic Search Premier, British Nursing Index, CINAHL, EMBASE, MEDLINE, PsycINFO, PubMed, Scopus, SocINDEX, SveMed + , Web of Science
Other sources	Google Scholar: 50 first results for each search string Researchers: authors of included articles were contacted Mental health organizations Hand search of reference lists of reviews and included articles
Search terms 1: Subject and MeSH terms	User group and field of health: adolescent psychiatry; adolescent psychology Field of research: clinical decision-making; community participation; consumer participation; cooperative behaviour; decision-making; decision-making, organizational; information dissemination; information sharing; patient participation; personal autonomy, public opinion; self-determination
Search terms 2: title search terms	User group: adolescents; teenagers; youth Field of health: mental; psychology; psychiatry
	Field of research: autonomy; client-centred; collaboration; consultation; contribution; decision-making; empowerment; engagement; governance; inclusion; information sharing; involvement; mutual agreement; negotiation; opinions; participation; partnership; patient-centred; peer support; perspectives; self-determination