“…One (2%) study [ 79 ] conducted both a CEA and a CUA. The hospital perspective was used in 28 (62%) studies [ 35 – 38 , 40 – 45 , 47 – 50 , 53 , 55 , 59 , 60 , 62 , 65 – 68 , 71 , 73 – 75 , 78 ], followed by the healthcare perspective (22%; n = 10) [ 39 , 46 , 51 , 52 , 54 , 58 , 63 , 69 , 70 , 77 ] and the societal perspective (12%; n = 5) [ 56 , 57 , 64 , 76 , 79 ]. In two (4%) studies [ 61 , 72 ], the perspective was unclear.…”