“…At the full text screening phase, citations were excluded due to not reporting associations between SES and OHCA incidence, bystander CPR provision or survival after OHCA. Out of the included studies, twelve measured SES differences in OHCA incidence, 25,[29][30][31]35,[38][39][40][41][42]47,48 thirteen measured SES differences in bystander CPR provision for OHCA 22,23,26,28,32,34,36,37,40,44,45,48,50 and fourteen measured SES differences in survival rate after an OH-CA. 16,21,24,[26][27][28]33,39,43,45,46,[49][50][51] Descriptive characteristics are provided in Table 2.…”