Table 4. Definitions of empowerment reported in studies included.

Definition of Empowerment	Category	Author/Date
“Individual levels of empowerment" described in terms of youth's ability to "reach out" and disseminate health information to the community. Focus on reaching out to and advocating for undocumented immigrants and helping them to gain confidence, knowledge and access services while "feeling empowered to motivate others to do the same."	Community Health	Ferrera et al 2015 [15]
"When local people at all levels are drawn together with the purpose of employing local wisdom to solve a problem which they all face, the result is a sense of empowerment to make changes, which are intrinsically sensitive to local circumstances, widely accepted by the community, and because of this, more likely to be sustained"	Environmental Health	Sansiritaweesook et al 2015 [16]
"Empowerment is related to the process of giving groups of communities autonomy and a progressive and self-sustained improvement of their lives."	Infectious Disease	Caprara et al 2015 [17]