“…One study (3%) was not clear on this aspect 32 . In the majority of studies (55%, 20/36), facilitators were appointed, assigned, or employed in that role, 13,14,22,23,25,26,30,31,33,36,39–42,44,45,47,49,50 while others (11%, 4/36) had facilitators who self-selected or expressed their interest in the role 20,38,48,52 . A small number of studies (11%, 4/36) examined whether a position (e.g., middle manager) had facilitator roles and functions, 21,28,29,35 a few had a mix of volunteers and appointed facilitators (6%, 2/36), 5,24 while the remainder (17%, 6/36) did not specify how this role was assumed 27,32,34,43,46,51 Table 1.…”