“…Table 1 presents a full overview of intervention characteristics. All of the included interventions utilized at least two of Hawk et al's harm reduction principles, with pragmatism being the most common (n = 34)[23-28, 30-33, 35, 37-39, 47-51, 53- 58, 60, 63, 66, 68, 70, 74-76, 78], followed by individualism (n = 33)[24, 25, 29-31, 33, 36, 38, 40-44, 46, 52, 57-59, 62-65, 67, 70-75, 77, 79-81], incrementalism (n = 24)[24, 28, 31, 34, 36, 38-43, 45, 53, 57-59, 61, 62, 65, 67, 71, 73, 77, 79], autonomy (n = 19)[27,29,30,35,37,43,44,46,47,50,54,59,64, 66,67,70,75,80,81], accountability without termination (n = 19)[23, 24, 26, 30, 37, 39-41, 44, 46-48, 50, 55, 63, 64, 68, 76, 80] and humanism (n = 14)[28,34,36,40,41,44,45,52,58,59,61,65,72,79] (Table2).…”