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[Evolution of the concept of positive mental health: a systematic review].

Objective Characterize the theoretical models that have underpinned empirical research on the concept of positive mental health from the time it first emerged in the field of health up to the present. Methods A systematic search of the literature was conducted in PubMed, EBSCO (including Academic Search Complete, ERIC, Academic Source, MasterFILE Premier, MedicLatina, MEDLINE, and the Psychology and Behavioral Sciences Collection), Science Direct, Psicodoc, Springer Link, Taylor & Francis, Wiley Online Library, Directory of Open Access Journals (DOAJ), Redalyc, SciELO, Ovid, Embase, and ProQuest (including Health and Medical Complete, the Nursing and Allied Health Source, Psychology Journals, and Social Science Journals). The search criterion was the descriptor "positive mental health." Results Of 51 studies consulted, 84% used a quantitative approach; 84% were published in English; and the same percentage were conducted between 2000 and 2014. The concept of positive mental health has been applied in essentially five different ways: as the absence of disease; as the subject of the Jahoda model; as a combination of factors on the Lluch scale; as a synonym of well-being; and as part of more complex scales of measurement. Conclusions Positive mental health should not be viewed as the opposite of a mental disorder, the absence of disease, or the sum of a given set of personal conditions. It is important to move forward in the development of conceptual models that will serve as a basis for approaching mental health from the perspective of health promotion.