“…The most commonly measured outcome was the quantity of opioids in morphine equivalent doses (MEDs) ( n = 44) [ 53 , 55 – 59 , 61 , 63 , 68 , 70 , 72 , 74 – 77 , 79 – 87 , 89 – 93 , 96 – 108 , 110 , 111 ], generally measured at 6 weeks or 1, 3 and 6 months. The proportion of patients using opioids was the second most frequently used outcome measure in the selected studies ( n = 25) [ 5 , 53 , 57 , 58 , 62 – 65 , 67 , 69 , 72 , 73 , 78 , 81 , 86 , 94 , 96 , 100 , 101 , 105 , 107 , 109 , 112 , 114 , 134 ] and this evaluation was often conducted at 3 ( n = 13) [ 5 , 53 , 57 , 62 , 63 , 65 , 72 , 81 , 94 , 100 , 105 , 112 , 114 ] and 6 months ( n = 6) [ 64 , 67 , 78 , 101 , 114 ]. The least frequently measured outcome was the proportion of patients who received an opioid prescription refill ( n = 18) [ 57 , 68 ,…”