“…Most studies described in-and exclusion criteria for the study population (item A) and gave a satisfactory description of the definition and operationalization of the variable considering social participation, which usually was measured as employment status (item C). However, six studies did not describe educational level of the study participants (item E) [30,32,36,[38][39][40]. Furthermore, 11 studies provided insufficient information on clinical variables such as comorbidity (presence of diabetes mellitus) [29,34,35,38,40,41], type of donation (cadaveric or living) [29,35,36,41,42] and dialysis before transplantation (item G) [29,31,36,39,40,42,43].…”