The Medical Subject Headings MeSH controlled vocabulary was initially adopted for the search of MEDLINE. However, the concept empowerment is a descriptor in the MeSH and refers to "Power Psychology" and "Patient Participation", and thus it was decided to use an ad hoc strategy using the keyword "Patient Empowerment" together with another descriptor "Chronic Disease" and the Boolean Operator AND. Language English was used as a limit. No time limit was added.
Inicialmente se adoptó el vocabulario controlado MeSH para la búsqueda en Medline, sin embargo el concepto empoderamiento no está incluido como descriptor y remite a "Power Psychology" y "Patient Participation", por lo que se decidió utilizar una estrategia "ad hoc" con la palabra clave "Patient Empowerment" junto con otro descriptor, "Chronic disease" y el operador booleano AND, como limitación se utilizó el idioma, ingles, y no se añadieron limitaciones temporales.